1 stick butter
3 very ripe bananas, mashed
1 c. sugar
2 eggs, beaten
1 1/4 c. plain flour
1 tsp. baking soda
Nuts, optional

Mix all ingredients together and beat until well blended. Fill greased muffin cups 2/3 full. Bake at 400 degrees for 12-13 minutes or until light golden brown. Makes about 13 muffins.