Preheat the oven to 180°C.
Mash the bananas.
Mix almond flour, cocoa powder, and baking powder together.
Beat the eggs, mix with the mashed banana, then add the dry ingredients and mix well.
Add low-fat milk to adjust the batter’s consistency.
Pour the batter into a baking mold.
Bake in the oven at 180°C for 20 minutes.