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Funfetti Sugar Cookie Bars Irresistible and Sweet Treat

by on April 11, 2025

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Get ready to meet your new favorite dessert! Funfetti Sugar Cookie Bars are a delightful treat bursting with color and flavor. These sweet, chewy bars are perfect for parties, potlucks, or just a cozy night in. I’ll show you how to make these easy-to-follow cookie bars that everyone will love. Let’s dive into this fun recipe and create something delicious together!

To make Funfetti Sugar Cookie Bars, you need the following ingredients: - 2 ½ cups all-purpose flour - 1 teaspoon baking soda - ½ teaspoon baking powder - 1 teaspoon salt - 1 cup unsalted butter, softened - 1 cup granulated sugar - ½ cup brown sugar, packed - 2 large eggs - 2 teaspoons vanilla extract - ½ cup rainbow sprinkles (plus more for topping) - 1 cup frosting (store-bought or homemade) Each ingredient plays a key role. The all-purpose flour gives the bars structure. Baking soda and baking powder help them rise. The salt enhances the flavors and balances the sweetness. Softened butter adds richness and moisture. Granulated sugar and brown sugar provide sweetness and a hint of caramel flavor. Eggs bind everything together. Vanilla extract adds a warm aroma. Rainbow sprinkles make these bars fun and festive. Lastly, frosting adds a creamy finish. When you gather these ingredients, you set the stage for a fun baking experience. Make sure to measure them accurately for the best results. {{ingredient_image_1}} Start by preheating your oven to 350°F (175°C). This step is key to baking. Next, grab a 9x13-inch baking pan. Line it with parchment paper. Make sure some paper hangs over the edges. This makes it easy to lift the bars out later. In a medium bowl, whisk together the dry ingredients. Combine 2 ½ cups of all-purpose flour, 1 teaspoon of baking soda, ½ teaspoon of baking powder, and 1 teaspoon of salt. Mixing these well ensures an even rise. Set this bowl aside for now. In a large mixing bowl, add 1 cup of softened unsalted butter. Then, pour in 1 cup of granulated sugar and ½ cup of packed brown sugar. Beat these ingredients together for about 2-3 minutes. The mix should look light and fluffy. This is important for the cookie texture. Now, add in 2 large eggs, one at a time. Mix well after each egg. Next, pour in 2 teaspoons of vanilla extract. Blend until everything is combined. Gradually add the dry mixture to the wet ingredients. Mix on low speed until just combined. Be careful not to overmix. Gently fold in ½ cup of rainbow sprinkles with a spatula. You want them evenly spread without breaking them. Once mixed, spread the cookie dough into your prepared baking pan. Smooth the top with a spatula. It should look even and ready to bake. Place the pan in your preheated oven. Bake for 20-25 minutes. The edges should turn golden brown. To check for doneness, poke a toothpick in the center. If it comes out clean, the bars are ready. Let them cool in the pan for about 15 minutes. After that, lift them out using the parchment paper. Cool completely on a wire rack. To make the best Funfetti sugar cookie bars, follow these steps: - Use softened butter. It blends well with sugars, making your bars light. - Measure flour correctly. Too much flour makes them dry. Use a spoon to scoop flour into a cup, then level it off. - Don't overmix the dough. Mix until just combined to keep the bars soft. - Bake at 350°F for 20-25 minutes. Watch for golden edges and a clean toothpick. Here are some common mistakes that can ruin your cookie bars: - Skipping the parchment paper. It helps with easy removal and prevents sticking. - Using cold eggs or butter. Room temperature ingredients mix better and create a smoother dough. - Overbaking. Keep an eye on the time. Remove them when the center is set. - Not folding in the sprinkles gently. This keeps the colors bright and pretty. Make your cookie bars stand out with these fun ideas: - Spread a thick layer of frosting. Use a spatula for smoothness. - Add extra rainbow sprinkles on top for a festive look. - Cut bars into fun shapes using cookie cutters. - Serve on a colorful plate. It makes the bars more inviting. Pro Tips Chill the Dough: For thicker and chewier bars, chill the cookie dough in the refrigerator for 30 minutes before baking. Use Parchment Paper: Lining the baking pan with parchment paper not only helps with easy removal but also prevents sticking. Don’t Overmix: Mix your ingredients until just combined to keep the cookie bars soft and tender. Customize Your Sprinkles: Feel free to use different colored sprinkles or themed sprinkles for holidays to make the bars festive! {{image_2}} You can use many frostings on Funfetti Sugar Cookie Bars. I love cream cheese frosting. It adds a tangy twist. Vanilla buttercream is another classic choice. It is rich and sweet. You can also try chocolate frosting for a fun contrast. For something lighter, whipped cream works well. You can even mix in some sprinkles into your frosting for added flair! If you want a healthier treat, try these swaps. Use coconut oil instead of butter. It adds a nice flavor and is dairy-free. You can also use less sugar. Replacing half the sugar with applesauce is a great idea. For a gluten-free version, use almond flour or a gluten-free blend. These changes keep the taste but lower the calories. You can easily change the flavor of these bars! Try adding chocolate chips for a sweet surprise. White chocolate chips also work great. Chopped nuts like walnuts or pecans add crunch. For a fruity touch, mix in dried fruit like cranberries. You can even change the sprinkles to match your theme or favorite colors! To keep your Funfetti Sugar Cookie Bars fresh, store them in an airtight container. You can also use plastic wrap to cover them tightly. This helps keep them soft and moist. Avoid placing them in direct sunlight or warm areas. When stored properly, these cookie bars last about a week at room temperature. If you want them to last longer, consider freezing them. They may lose some texture after a week, but they will still taste great. To freeze your Funfetti Sugar Cookie Bars, first let them cool completely. Then, cut them into squares. Wrap each square in plastic wrap and place them in a freezer-safe bag. They can last up to three months in the freezer. When ready to enjoy, simply thaw them at room temperature for about an hour. Yes, you can. Use applesauce or mashed bananas instead of eggs. For each egg, use 1/4 cup of applesauce or 1/2 banana. This will keep your bars moist and sweet. If you want to avoid butter, use coconut oil or margarine. Both options provide a rich flavor. You can also try unsweetened applesauce for a lighter version. To make frosting, mix 1/2 cup of softened butter with 2 cups of powdered sugar. Add 2 tablespoons of milk and 1 teaspoon of vanilla extract. Beat until smooth and creamy. Adjust milk for desired texture. Yes, you can use a gluten-free all-purpose flour blend. Make sure it has xanthan gum to help with texture. This will keep your cookie bars soft and delicious. These cookie bars are perfect for parties, birthdays, and family gatherings. They brighten up any event with their colorful sprinkles. Serve them at bake sales or picnics for a fun treat! You now have all the steps to bake delicious funfetti cookie bars. We covered the key ingredients, detailed instructions for mixing and baking, and ways to decorate. You also learned tips for storage and answers to common questions. I hope these ideas spark your creativity in the kitchen. Enjoy baking and sharing these tasty treats with friends and family!

Why I Love This Recipe

  1. Childhood Nostalgia: These funfetti sugar cookie bars remind me of birthday parties and celebrations from my childhood, filled with colorful sprinkles and joy.
  2. Easy to Make: This recipe is simple and straightforward, making it perfect for bakers of all skill levels. Just mix, bake, and enjoy!
  3. Customizable: You can easily modify the frosting or add different mix-ins, allowing for endless variations to suit your taste.
  4. Perfect for Any Occasion: Whether it’s a birthday, holiday, or just because, these cookie bars are a delightful treat that everyone will love!

Ingredients

To make Funfetti Sugar Cookie Bars, you need the following ingredients:

– 2 ½ cups all-purpose flour

– 1 teaspoon baking soda

– ½ teaspoon baking powder

– 1 teaspoon salt

– 1 cup unsalted butter, softened

– 1 cup granulated sugar

– ½ cup brown sugar, packed

– 2 large eggs

– 2 teaspoons vanilla extract

– ½ cup rainbow sprinkles (plus more for topping)

– 1 cup frosting (store-bought or homemade)

Each ingredient plays a key role. The all-purpose flour gives the bars structure. Baking soda and baking powder help them rise. The salt enhances the flavors and balances the sweetness. Softened butter adds richness and moisture.

Granulated sugar and brown sugar provide sweetness and a hint of caramel flavor. Eggs bind everything together. Vanilla extract adds a warm aroma. Rainbow sprinkles make these bars fun and festive. Lastly, frosting adds a creamy finish.

When you gather these ingredients, you set the stage for a fun baking experience. Make sure to measure them accurately for the best results.

Step-by-Step Instructions

Prepping the Oven and Baking Pan

Start by preheating your oven to 350°F (175°C). This step is key to baking. Next, grab a 9×13-inch baking pan. Line it with parchment paper. Make sure some paper hangs over the edges. This makes it easy to lift the bars out later.

Mixing Dry Ingredients

In a medium bowl, whisk together the dry ingredients. Combine 2 ½ cups of all-purpose flour, 1 teaspoon of baking soda, ½ teaspoon of baking powder, and 1 teaspoon of salt. Mixing these well ensures an even rise. Set this bowl aside for now.

Creaming the Butter and Sugars

In a large mixing bowl, add 1 cup of softened unsalted butter. Then, pour in 1 cup of granulated sugar and ½ cup of packed brown sugar. Beat these ingredients together for about 2-3 minutes. The mix should look light and fluffy. This is important for the cookie texture.

Combining Wet and Dry Mixtures

Now, add in 2 large eggs, one at a time. Mix well after each egg. Next, pour in 2 teaspoons of vanilla extract. Blend until everything is combined. Gradually add the dry mixture to the wet ingredients. Mix on low speed until just combined. Be careful not to overmix.

Adding Sprinkles and Spreading Dough

Gently fold in ½ cup of rainbow sprinkles with a spatula. You want them evenly spread without breaking them. Once mixed, spread the cookie dough into your prepared baking pan. Smooth the top with a spatula. It should look even and ready to bake.

Baking and Cooling Process

Place the pan in your preheated oven. Bake for 20-25 minutes. The edges should turn golden brown. To check for doneness, poke a toothpick in the center. If it comes out clean, the bars are ready. Let them cool in the pan for about 15 minutes. After that, lift them out using the parchment paper. Cool completely on a wire rack.

Tips & Tricks

How to Achieve Perfect Cookie Bars

To make the best Funfetti sugar cookie bars, follow these steps:

– Use softened butter. It blends well with sugars, making your bars light.

– Measure flour correctly. Too much flour makes them dry. Use a spoon to scoop flour into a cup, then level it off.

– Don’t overmix the dough. Mix until just combined to keep the bars soft.

– Bake at 350°F for 20-25 minutes. Watch for golden edges and a clean toothpick.

Common Mistakes to Avoid

Here are some common mistakes that can ruin your cookie bars:

– Skipping the parchment paper. It helps with easy removal and prevents sticking.

– Using cold eggs or butter. Room temperature ingredients mix better and create a smoother dough.

– Overbaking. Keep an eye on the time. Remove them when the center is set.

– Not folding in the sprinkles gently. This keeps the colors bright and pretty.

Decorating Ideas and Presentation Tips

Make your cookie bars stand out with these fun ideas:

– Spread a thick layer of frosting. Use a spatula for smoothness.

– Add extra rainbow sprinkles on top for a festive look.

– Cut bars into fun shapes using cookie cutters.

– Serve on a colorful plate. It makes the bars more inviting.

Pro Tips

  1. Chill the Dough: For thicker and chewier bars, chill the cookie dough in the refrigerator for 30 minutes before baking.
  2. Use Parchment Paper: Lining the baking pan with parchment paper not only helps with easy removal but also prevents sticking.
  3. Don’t Overmix: Mix your ingredients until just combined to keep the cookie bars soft and tender.
  4. Customize Your Sprinkles: Feel free to use different colored sprinkles or themed sprinkles for holidays to make the bars festive!

Variations

Different Types of Frosting to Use

You can use many frostings on Funfetti Sugar Cookie Bars. I love cream cheese frosting. It adds a tangy twist. Vanilla buttercream is another classic choice. It is rich and sweet. You can also try chocolate frosting for a fun contrast. For something lighter, whipped cream works well. You can even mix in some sprinkles into your frosting for added flair!

Healthy Alternatives and Substitutions

If you want a healthier treat, try these swaps. Use coconut oil instead of butter. It adds a nice flavor and is dairy-free. You can also use less sugar. Replacing half the sugar with applesauce is a great idea. For a gluten-free version, use almond flour or a gluten-free blend. These changes keep the taste but lower the calories.

Flavor Additions

You can easily change the flavor of these bars! Try adding chocolate chips for a sweet surprise. White chocolate chips also work great. Chopped nuts like walnuts or pecans add crunch. For a fruity touch, mix in dried fruit like cranberries. You can even change the sprinkles to match your theme or favorite colors!

Storage Info

Best Practices for Storing Cookie Bars

To keep your Funfetti Sugar Cookie Bars fresh, store them in an airtight container. You can also use plastic wrap to cover them tightly. This helps keep them soft and moist. Avoid placing them in direct sunlight or warm areas.

How Long Do They Last?

When stored properly, these cookie bars last about a week at room temperature. If you want them to last longer, consider freezing them. They may lose some texture after a week, but they will still taste great.

Freezing Instructions for Later Enjoyment

To freeze your Funfetti Sugar Cookie Bars, first let them cool completely. Then, cut them into squares. Wrap each square in plastic wrap and place them in a freezer-safe bag. They can last up to three months in the freezer. When ready to enjoy, simply thaw them at room temperature for about an hour.

FAQs

Can I make Funfetti Sugar Cookie Bars without eggs?

Yes, you can. Use applesauce or mashed bananas instead of eggs. For each egg, use 1/4 cup of applesauce or 1/2 banana. This will keep your bars moist and sweet.

What can I substitute for butter in this recipe?

If you want to avoid butter, use coconut oil or margarine. Both options provide a rich flavor. You can also try unsweetened applesauce for a lighter version.

How do I make homemade frosting for these bars?

To make frosting, mix 1/2 cup of softened butter with 2 cups of powdered sugar. Add 2 tablespoons of milk and 1 teaspoon of vanilla extract. Beat until smooth and creamy. Adjust milk for desired texture.

Can I use gluten-free flour for this recipe?

Yes, you can use a gluten-free all-purpose flour blend. Make sure it has xanthan gum to help with texture. This will keep your cookie bars soft and delicious.

What occasions are these bars best suited for?

These cookie bars are perfect for parties, birthdays, and family gatherings. They brighten up any event with their colorful sprinkles. Serve them at bake sales or picnics for a fun treat!

You now have all the steps to bake delicious funfetti cookie bars. We covered the key ingredients, detailed instructions for mixing and baking, and ways to decorate. You also learned tips for storage and answers to common questions.

I hope these ideas spark your creativity in the kitchen. Enjoy baking and sharing these tasty treats with friends and famil

To make Funfetti Sugar Cookie Bars, you need the following ingredients: - 2 ½ cups all-purpose flour - 1 teaspoon baking soda - ½ teaspoon baking powder - 1 teaspoon salt - 1 cup unsalted butter, softened - 1 cup granulated sugar - ½ cup brown sugar, packed - 2 large eggs - 2 teaspoons vanilla extract - ½ cup rainbow sprinkles (plus more for topping) - 1 cup frosting (store-bought or homemade) Each ingredient plays a key role. The all-purpose flour gives the bars structure. Baking soda and baking powder help them rise. The salt enhances the flavors and balances the sweetness. Softened butter adds richness and moisture. Granulated sugar and brown sugar provide sweetness and a hint of caramel flavor. Eggs bind everything together. Vanilla extract adds a warm aroma. Rainbow sprinkles make these bars fun and festive. Lastly, frosting adds a creamy finish. When you gather these ingredients, you set the stage for a fun baking experience. Make sure to measure them accurately for the best results. {{ingredient_image_1}} Start by preheating your oven to 350°F (175°C). This step is key to baking. Next, grab a 9x13-inch baking pan. Line it with parchment paper. Make sure some paper hangs over the edges. This makes it easy to lift the bars out later. In a medium bowl, whisk together the dry ingredients. Combine 2 ½ cups of all-purpose flour, 1 teaspoon of baking soda, ½ teaspoon of baking powder, and 1 teaspoon of salt. Mixing these well ensures an even rise. Set this bowl aside for now. In a large mixing bowl, add 1 cup of softened unsalted butter. Then, pour in 1 cup of granulated sugar and ½ cup of packed brown sugar. Beat these ingredients together for about 2-3 minutes. The mix should look light and fluffy. This is important for the cookie texture. Now, add in 2 large eggs, one at a time. Mix well after each egg. Next, pour in 2 teaspoons of vanilla extract. Blend until everything is combined. Gradually add the dry mixture to the wet ingredients. Mix on low speed until just combined. Be careful not to overmix. Gently fold in ½ cup of rainbow sprinkles with a spatula. You want them evenly spread without breaking them. Once mixed, spread the cookie dough into your prepared baking pan. Smooth the top with a spatula. It should look even and ready to bake. Place the pan in your preheated oven. Bake for 20-25 minutes. The edges should turn golden brown. To check for doneness, poke a toothpick in the center. If it comes out clean, the bars are ready. Let them cool in the pan for about 15 minutes. After that, lift them out using the parchment paper. Cool completely on a wire rack. To make the best Funfetti sugar cookie bars, follow these steps: - Use softened butter. It blends well with sugars, making your bars light. - Measure flour correctly. Too much flour makes them dry. Use a spoon to scoop flour into a cup, then level it off. - Don't overmix the dough. Mix until just combined to keep the bars soft. - Bake at 350°F for 20-25 minutes. Watch for golden edges and a clean toothpick. Here are some common mistakes that can ruin your cookie bars: - Skipping the parchment paper. It helps with easy removal and prevents sticking. - Using cold eggs or butter. Room temperature ingredients mix better and create a smoother dough. - Overbaking. Keep an eye on the time. Remove them when the center is set. - Not folding in the sprinkles gently. This keeps the colors bright and pretty. Make your cookie bars stand out with these fun ideas: - Spread a thick layer of frosting. Use a spatula for smoothness. - Add extra rainbow sprinkles on top for a festive look. - Cut bars into fun shapes using cookie cutters. - Serve on a colorful plate. It makes the bars more inviting. Pro Tips Chill the Dough: For thicker and chewier bars, chill the cookie dough in the refrigerator for 30 minutes before baking. Use Parchment Paper: Lining the baking pan with parchment paper not only helps with easy removal but also prevents sticking. Don’t Overmix: Mix your ingredients until just combined to keep the cookie bars soft and tender. Customize Your Sprinkles: Feel free to use different colored sprinkles or themed sprinkles for holidays to make the bars festive! {{image_2}} You can use many frostings on Funfetti Sugar Cookie Bars. I love cream cheese frosting. It adds a tangy twist. Vanilla buttercream is another classic choice. It is rich and sweet. You can also try chocolate frosting for a fun contrast. For something lighter, whipped cream works well. You can even mix in some sprinkles into your frosting for added flair! If you want a healthier treat, try these swaps. Use coconut oil instead of butter. It adds a nice flavor and is dairy-free. You can also use less sugar. Replacing half the sugar with applesauce is a great idea. For a gluten-free version, use almond flour or a gluten-free blend. These changes keep the taste but lower the calories. You can easily change the flavor of these bars! Try adding chocolate chips for a sweet surprise. White chocolate chips also work great. Chopped nuts like walnuts or pecans add crunch. For a fruity touch, mix in dried fruit like cranberries. You can even change the sprinkles to match your theme or favorite colors! To keep your Funfetti Sugar Cookie Bars fresh, store them in an airtight container. You can also use plastic wrap to cover them tightly. This helps keep them soft and moist. Avoid placing them in direct sunlight or warm areas. When stored properly, these cookie bars last about a week at room temperature. If you want them to last longer, consider freezing them. They may lose some texture after a week, but they will still taste great. To freeze your Funfetti Sugar Cookie Bars, first let them cool completely. Then, cut them into squares. Wrap each square in plastic wrap and place them in a freezer-safe bag. They can last up to three months in the freezer. When ready to enjoy, simply thaw them at room temperature for about an hour. Yes, you can. Use applesauce or mashed bananas instead of eggs. For each egg, use 1/4 cup of applesauce or 1/2 banana. This will keep your bars moist and sweet. If you want to avoid butter, use coconut oil or margarine. Both options provide a rich flavor. You can also try unsweetened applesauce for a lighter version. To make frosting, mix 1/2 cup of softened butter with 2 cups of powdered sugar. Add 2 tablespoons of milk and 1 teaspoon of vanilla extract. Beat until smooth and creamy. Adjust milk for desired texture. Yes, you can use a gluten-free all-purpose flour blend. Make sure it has xanthan gum to help with texture. This will keep your cookie bars soft and delicious. These cookie bars are perfect for parties, birthdays, and family gatherings. They brighten up any event with their colorful sprinkles. Serve them at bake sales or picnics for a fun treat! You now have all the steps to bake delicious funfetti cookie bars. We covered the key ingredients, detailed instructions for mixing and baking, and ways to decorate. You also learned tips for storage and answers to common questions. I hope these ideas spark your creativity in the kitchen. Enjoy baking and sharing these tasty treats with friends and family!

Funfetti Sugar Cookie Bars

Delicious and colorful sugar cookie bars topped with frosting and sprinkles.
Print Recipe Pin Recipe
Prep Time 15 minutes
Cook Time 25 minutes
Total Time 45 minutes
Course Dessert
Cuisine American
Servings 24
Calories 150 kcal

Ingredients
  

  • 2.5 cups all-purpose flour
  • 1 teaspoon baking soda
  • 0.5 teaspoon baking powder
  • 1 teaspoon salt
  • 1 cup unsalted butter, softened
  • 1 cup granulated sugar
  • 0.5 cup brown sugar, packed
  • 2 large eggs
  • 2 teaspoons vanilla extract
  • 0.5 cup rainbow sprinkles (plus more for topping)
  • 1 cup frosting (store-bought or homemade)

Instructions
 

  • Preheat your oven to 350°F (175°C). Line a 9x13-inch baking pan with parchment paper, allowing some overhang for easy removal.
  • In a bowl, whisk together the flour, baking soda, baking powder, and salt. Set aside.
  • In a large mixing bowl, beat the softened butter, granulated sugar, and brown sugar together until light and fluffy, about 2-3 minutes.
  • Add in the eggs one at a time, mixing well after each addition. Incorporate the vanilla extract and continue to mix until fully combined.
  • Gradually add the dry ingredient mixture to the wet ingredients, mixing on low speed until just combined. Avoid overmixing.
  • Fold in the rainbow sprinkles gently with a spatula until evenly distributed.
  • Spread the cookie dough evenly into the prepared baking pan, smoothing the top with a spatula.
  • Bake for 20-25 minutes, or until the edges are golden and a toothpick inserted into the center comes out clean.
  • Allow the bars to cool in the pan for about 15 minutes, then use the parchment overhang to lift them out and cool completely on a wire rack.
  • Once cooled, spread your favorite frosting over the top and sprinkle with additional rainbow sprinkles for decoration.
  • Slice into squares and serve!

Notes

Allow the bars to cool completely before frosting for best results.
Keyword bars, dessert, funfetti, sugar cookies

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