1-1/2 c. sugar1 c. sour cream1/2 c. butter, softened2 eggs1-3/4 (3 or 4) ripe bananas, mashed2 tsp. vanilla extract2 c. all purpose flour1 tsp. baking soda3/4 tsp. salt1/2 c. chopped walnuts (optional)
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Brown Butter Frosting:1/2 c. butter4 c. powdered sugar1-1/2 tsp. vanilla extract3 tbsp. milk