INGREDIENTS
2
Bananas, well mashed (about 9-10 ounces), medium
1
Egg yolk, large
1 tsp
Baking powder
1/2 tsp
Baking soda
3/4 cup
Brown sugar, packed light
1 cup
Chocolate chips
2 1/4 cups
Flour
1/4 tsp
Salt
1
Sugar, Coarse
1 tsp
Vanilla extract
1/2 cup
(4 ounces, 8 tablespoons) butter
1/4 cup
Sour cream