Preheat the oven to 375F. Prepare a muffin pan with liners.

In a mixing bowl, mix the bananas until mashed without lumps.

Add sugar, egg, and applesauce. Mix.

In a separate bowl, combine flour, cocoa powder, salt, baking soda, and baking powder.

Add dry ingredients to the wet ingredients. Do not overmix.

Fold in the chocolate chips.

Put the mixture into the muffin liners.

Bake for 18-20 minutes.

Allow to cool for 5 minutes in the pan and then remove to cool for another 5 minutes.