INGREDIENTS
1/2 cup
1 cube unsalted butter
1 1/2 cups
sugar
1 cup
sour cream
2
eggs (beaten)
1 1/2 cups
mashed bananas (about 3 large or 4 small)
1 tbsp
vanilla
2 cups
all-purpose flour
1 tsp
salt
1 tsp
baking soda
1/2 cup
chopped walnuts
brown butter vanilla bean frosting