Step 1

Preheat oven to 350 degrees. Spray a 9x5 loaf pan with nonstick spray.

Step 2

Add the flour, baking powder, cinnamon, baking soda, and salt to a small bowl and whisk to combine.

Step 3

Add the butter and sugar to a large bowl and beat with an electric mixer until light and fluffy.

Step 4

Beat in the eggs and vanilla until combined.

Step 5

Add the mashed bananas to the mixture and mix by hand until combined, scraping down the bowl as you stir.

Step 6

Stir in the dry ingredients by hand, being sure not to overmix the batter.

Step 7

Fold in the blueberries.

Step 8

Transfer the batter to the prepared baking dish and bake for 1 hour or until a tester comes out clean. Tent the pan with aluminum foil if the bread is starting to get too brown towards the end of baking.

Step 9

Cool in the pan for 15 minutes before transferring to a wire rack to finish cooling.