INGREDIENTS
1 1/4 cups
all purpose flour
1/2 tbsp
baking powder
1
banana
1/2 cup
cocoa powder
1
egg
1/2 cup
granulated sugar
2 tbsp
milk
2 tbsp
oil
1/4 cup
oreo cookie
1 1/2 cups
powdered sugar
1 pinch
salt
2 tbsp
sour cream
6 tbsp
unsalted butter
1 tsp
vanilla extract