Preheat the oven to 180°C (356°F).
Mash the banana and avocado until smooth.
Add eggs and cocoa powder, then mix well.
Add almond flour, salt, and baking powder, and make the batter.
Pour the batter into a mold.
Bake in the oven at 180°C (356°F) for 20-25 minutes.
Let cool before eating.