Orange Pineapple Cake

1 package of Butter Cake Mix ( I used Duncan Hines)
1 egg
1 can of mandarin orange sections
1 large can of crushed pineapple
1 container of Cool Whip
1 (3 oz.) package of instant vanilla pudding

How to make it

Make cake mix using package directions plus the addition of 1 egg. Fold drained orange sections into the cake batter. Bake in 2 greased and floured 9 inch pans according to directions on cake mix. When cool, fill and frost with mixture of undrained pineapple and dry pudding mix stirred into the Cool Whip topping.