Step 1

In a stand mixer with the paddle attachment, mix the bananas and brown sugar until the bananas are mashed and the sugar is dissolved.

Step 2

Add the applesauce, vanilla, and egg. Mix together.

Step 3

In a separate bowl, mix together the flour, cocoa powder, baking soda and salt. Add the dry ingredients to the wet ingredients and mix until incorporated.

Step 4

Fold in the semi-sweet chocolate chips. Pour batter into a greased 8x8-inch baking dish. Sprinkle the top with mini chocolate chips.

Step 5

Bake at 350 degrees Fahrenheit for 25 to 35 minutes. Check the center with a toothpick to determine doneness. Best eaten warm.