Frosted Bananna Bars

Batter:
1/2 c. butter
2 c. sugar
3 eggs
2 c. flour
2 c. mashed banana (3 medium bananas)
1 tsp. vanilla
1 tsp. baking soda
1 tsp. salt

Frosting:
1/2 c. butter
8 oz. cream cheese
4 c. powdered sugar

Cream together butter and sugar. Add eggs, bananas, and vanilla and mix well. Add remaining ingredients and mix till combined. Pour into greased 15x10 pan. Bake for 25 minutes at 350 degrees. While baking, cream together butter and cream cheese for the frosting and gradually add powedered sugar. Spread over cooled bars.