1 box Duncan Hines butter recipe yellow cake mix
1 sm. can mandarin oranges
1/2 c. oil
4 eggs

FROSTING:

9 oz. Cool Whip
1 (20 oz.) can crushed pineapple, drained
1 lg. box instant Jello vanilla pudding

Preheat oven to 350 degrees. Grease and flour 3 (9") cake pans. Combine cake mix, oil and oranges into bowl and mix ingredients until smooth. Cut oranges into small bits (3 to a section is good) and stir in batter. Pour batter into cake pans and bake 25 to 30 minutes. Stir Cool Whip, pineapple and pudding together. Frost layers and refrigerate.