3/4 cup butter or margarine

1 1/2 cups granulated white sugar

1 1/2 cups mashed bananas -- (3 medium bananas)

2 eggs -- well beaten

1 teaspoon vanilla extract

2 cups all-purpose flour

1 teaspoon baking soda

3/4 teaspoon salt

1/2 cup buttermilk

or 1/2 cup milk soured with 1 teaspoon vinegar 3/4 cup chopped walnuts

Preheat oven to 325