1/2 c. butter
1 1/2 c. sugar
2 eggs
3/4 c. sour cream
2 ripe bananas, mashed
2 c. flour
1 tsp. baking soda
1 tsp. salt
1 tsp. vanilla

Bake in jelly roll pan at 350 degrees for 20 minutes.

FROSTING:

2 c. powdered sugar
1/2 c. soft butter
1 1/2 tsp. vanilla
2 tbsp. sour cream

Mix all together with electric mixer until smooth. Spread over cooled bars.