Yum Yum Cake
["1 yellow or white cake mix", "1 c. oil", "4 eggs", "1 can mandarin orange with juice", "1 large pkg. vanilla instant pudding mix", "1 can (medium) pineapple (crushed)", "1 carton Cool Whip"]
["Mix first 4 ingredients 3 or 4 minutes.", "Prepare three cake pans; bake at 350\u00b0 for 18 minutes.", "While cake is baking, mix pudding mix with pineapple.", "Put in refrigerator to thicken.", "When thick, fold in Cool Whip.", "Return to refrigerator and frost cake when cool."]
["white cake", "oil", "eggs", "vanilla instant pudding mix", "pineapple"]