Preheat your oven to 350F

Grease your muffin liners or add muffin liners

Gather all your ingredients, measure everything, and then set aside.

In a large bowl, mash the ripe bananas. Add the sugar, butter, egg, and vanilla extract. Whisk together until smooth and combined.

In a separate bowl, whisk together the flour, cocoa powder, baking soda, and salt.

Add the dry ingredients to the wet mixture. Stir gently until just combined — don’t overmix! If the batter feels too thick, add 1–2 tablespoons of milk to loosen it slightly.

Spoon the batter evenly into the prepared muffin tin, filling each about 3/4 full.

Bake for 18–22 minutes or until a toothpick inserted in the center of a muffin comes out clean.

Let muffins cool in the pan for 5 minutes before transferring to a wire rack to cool completely.

Serve and enjoy!