Margaret'S Banana Pudding Cake
["1 yellow box cake mix", "1 small box vanilla pudding, cooked", "6 to 8 bananas", "1 (8 oz.) Cool Whip", "1 small box instant vanilla pudding"]
["Add box of cooked vanilla pudding to cake mix in large mixing bowl and mix as box says, using the butter recipe.", "Put cake in oven at 350\u00b0 for 30 to 35 minutes or until done.", "Let cake cool."]
["cake mix", "vanilla pudding", "bananas", "vanilla pudding"]