Preheat your oven to 350°F (175°C). Grease a mini loaf pan or line it with parchment paper for easy removal.
In a medium bowl, whisk together the flour, baking powder, baking soda, salt, cinnamon, and nutmeg until well combined.
In a separate large bowl, mix the pumpkin puree, granulated sugar, brown sugar, vegetable oil, eggs, and vanilla extract until smooth and creamy.
Gradually add the dry ingredients to the wet ingredients, stirring until just combined. Be careful not to overmix; a few lumps are okay.
In a small bowl, combine 2 tablespoons of brown sugar and 1 teaspoon of ground cinnamon to create the cinnamon swirl mixture.
Pour half of the pumpkin bread batter into the prepared mini loaf pan, followed by half of the cinnamon swirl mixture. Using a knife, gently swirl the mixture into the batter to create a beautiful pattern.
Pour the remaining batter on top of the swirl, followed by the rest of the cinnamon mixture. Use the knife again to create a final swirl through the top layer.
Bake in the preheated oven for 25-30 minutes or until a toothpick inserted into the center comes out clean.
Allow the mini bread to cool in the pan for about 10 minutes before transferring it to a wire rack to cool completely.
Notes
For best results, do not overmix the batter.
Keyword cinnamon swirl, mini loaves, pumpkin bread