Banana Yellow Cake
["cake batter as directed", "1/8 tsp. soda", "3/4 c. water", "1 c. mashed bananas (2 to 3 medium)", "1/3 c. finely chopped nuts, if desired", "sweetened whipped cream, if desired", "sliced bananas, if desired"]
["Make batter as directed, except stir 1/8 teaspoon soda into mix before adding liquid.", "Use only 3/4 cup water and add 1 cup mashed bananas (2 to 3 medium).", "If desired, fold 1/3 cup finely chopped nuts into batter.", "Pour into prepared oblong or layer pans.", "Bake.", "If desired, fill and frost with sweetened whipped cream and sliced bananas."]
["cake batter", "soda", "water", "bananas", "nuts", "whipped cream", "bananas"]