Preheat oven to 350˚.

In a medium bowl, place the flour, the baking powder, the baking soda, and the salt. Mix well. In a large bowl, beat the butter into a cream. Add the sugar. Add the aquafaba and whisk. Slowly incorporate the flour mixture, adding some of the milk after each addition, until all incorporated. Add the vanilla extract and the mashed bananas. Mix well. Transfer to four mini bread pans (3×6) or two regular 5×7 bread pans, lined with parchment paper. In a small bowl, mix the brown sugar and the cinnamon. Spread over the batter and place the pans in the oven. Bake for 25 minutes (or 50 minutes for the regular bread pans), or until a toothpick inserted in the middle of the loaves comes out clean. Remove from the oven and let cool 10 minutes. Remove the breads from the pans and let cool 20 minutes more. Bon appétit!