Mom'S Cake And Frosting
["8 oz. sour cream", "12 oz. Cool Whip", "powdered sugar to taste", "chocolate cake with coconut and pecans or French vanilla cake with strawberries"]
["Bake cake as directed.", "If baked in a 13 x 9-inch pan, cool and cut lengthwise, using dental floss and a sawing motion."]
["sour cream", "powdered sugar", "chocolate cake"]