Banana Bars

1 cup butter - room temperature
1 1/2 cups sugar
3-4 ripe bananas
2 eggs
1 cup sour cream
1 tsp vanilla
2 cups flour
1/2 tsp salt
1 tsp baking soda

Bake for 20 minutes at 350

Cream Cheese Frosting:
1/2 cup butter
1 pkg cream cheese
2 cups powdered sugar
1/4 tsp vanilla