Steps
1. Preheat your oven to 350°F (175°C). Grease a small oven-safe ramekin or cake pan.
2. In a bowl, mash the ripe banana until smooth.
3. Add cocoa powder, sugar, vegetable oil, milk, and vanilla extract to the banana. Mix well.
4. In another bowl, combine the flour, baking powder, and salt.
5. Gradually add the dry ingredients to the wet mixture, stirring until just combined.
6. Pour the batter into the prepared ramekin.
7. Bake for 20-25 minutes or until a toothpick inserted into the center comes out clean.
8. Allow to cool slightly before enjoying.