1 box vanilla cake mix
1 box coconut-flavored instant pudding mix
1 c. milk
1/2 tub Cool Whip
1 (8 oz.) can crushed pineapple, drained

Bake cake as directed and let cool. Beat pudding mix, milk, and Cool Whip until smooth. Fold in pineapple. Frost cake with Cool Whip mixture and chill until you are ready to serve.