INGREDIENTS
1 1/2 cups
sugar
1 cup
sour cream
1/2 cup
unsalted butter (, softened)
2
eggs
1 3/4 cups
3 or 4 ripe bananas, mashed
2 tsp
vanilla
2 cups
flour
1 tsp
baking soda
3/4 tsp
salt
1/2 cup
chopped walnuts ((optional))
1/2 cup
unsalted butter
3 3/4 cups
powdered sugar
1 1/2 tsp
vanilla
about 3 tablespoons milk or half and half