Banana Muffins
["3/4 c. butter", "2 1/4 c. sugar", "3 eggs", "1 1/2 tsp. vanilla", "1 1/2 c. bananas, mashed", "3 c. flour", "1 tsp. baking soda", "1 tsp. baking powder", "3/4 tsp. salt", "1/3 c. sour cream", "1 c. nuts (optional)"]
["Cream together butter, sugar, eggs, vanilla, bananas and sour cream.", "Mix flour, soda, baking powder and salt.", "Blend into cream mixture.", "Bake at 350\u00b0 for 20 minutes.", "Makes 28 muffins."]
["butter", "sugar", "eggs", "vanilla", "bananas", "flour", "baking soda", "baking powder", "salt", "sour cream", "nuts"]