1 Duncan Hines pineapple supreme cake mix
1 pkg. (4 serving) pineapple instant pudding & pie filling
3/4 c. oil
4 eggs
1 (10 oz.) 7-Up

Mix and bake in 3 greased and floured round cake pans at 325 degrees until golden brown.

ICING:

1 1/2 c. sugar
2 tbsp. cornstarch
1 stick butter
2 eggs
1 lg. can crushed pineapple (undrained)

Combine ingredients and cook until thick. Spread between layers and top.