INGREDIENTS
1/2 cup
(1 stick) butter, softened
1 cup
granulated sugar
2
large eggs, beaten
3
ripe bananas, mashed
2 cups
flour
1 tsp
baking soda
1/2 tsp
salt
1/2 cup
rainbow sprinkles
1/4 cup
unsalted butter, softened
1 cup
powdered sugar
1/2 tsp
vanilla extract
sprinkles, for topping