INGREDIENTS
1 stick
softened salted butter
1/2 cup
sugar
1
egg
3
large ripened bananas mashed
1 tsp
vanilla
1 cup
whole wheat flour
1 tsp
baking soda
2 tbsp
extra dark cocoa powder
1/2 cup
sour cream
1 cup
dark chocolate chips (mini will work as well, but I prefer regular sized ones in this recipe)