Ingredients:
2 cups all-purpose flour
1 teaspoon baking powder
1/2 teaspoon baking soda
1/2 teaspoon salt
1 1/2 cups mashed, ripe bananas
2 1/2 cups
1/2 cup butter or margarine, softened
3/4 cup sugar
2 eggs
1/2 cup coarsely chopped walnuts
Stir together flour, baking powder, soda and salt. Set aside.