Cinnamon is incorporated two ways in this banana bread! The batter itself is spiced with cinnamon, and there's also a cinnamon-sugar swirl running throughout the loaf. This recipe is perfect for a quick and easy "anytime" dessert!
Preheat the oven to 350°F (180°C). Spray a 9x5-inch loaf pan with nonstick cooking spray, line the pan with parchment paper, and set aside.
Using a handheld mixer or stand mixer fitted with the paddle attachment, mix together the butter, granulated sugar, and brown sugar until light and fluffy (about 3 to 4 minutes). Add the eggs and vanilla, making sure to mix well after each ingredient. Then, mix in the mashed banana.
In a separate mixing bowl, whisk together the flour, baking powder, baking soda, salt, and cinnamon.
Add the dry ingredients to the wet ingredients and mix until just combined, making sure not to overmix the batter.
To make the cinnamon sugar swirl: In a separate bowl, mix together the sugar and cinnamon.
For one layer of the cinnamon sugar: Pour about half of the banana bread into the loaf pan and sprinkle the cinnamon sugar mixture on top, then pour the remaining batter on top.
For two layers of the cinnamon sugar (like the pictures in the post):Pour about one-third of the batter in the loaf pan, sprinkle half of the cinnamon sugar mixture on top, and repeat layers, topping with the last third of the batter.
Bake for 55 to 65 minutes or until a toothpick inserted into the center comes out clean. If the banana bread becomes too dark, tent with aluminum foil for the last 15 to 20 minutes of baking.
Remove from oven and allow to cool in the loaf pan for 10 minutes. Remove the bread from the loaf pan and transfer to a wire rack to finish cooling.
Notes
Storage: Banana bread can be kept at room temperature for up to four days or frozen for up to three months.