1 pkg. white cake mix
4 eggs
1/2 c. oil
1 (11 oz.) can mandarin oranges with juice (reserve 3 slices to place on top of cake)

Mix together and bake in 2 or 3 layers according to package directions. Cool and frost with Cool Whip Frosting.

Cool Whip Frosting:

1 pkg. (large) Cool Whip
1 can (small) crushed pineapple, drained
1 box vanilla instant pudding

Mix together and chill. When cake is cool, frost. Decorate with reserved orange slices.