Duncan Hines yellow cake mix
Crushed pineapple in heavy syrup (1 lg. can)
3 sm. pkgs. instant vanilla pudding
3 3/4 c. milk
1 lg. Cool Whip

Bake cake mix as directed EXCEPT using juice from pineapple plus water for liquid called for on box. LET COOL. Prepare instant pudding using only 3 3/4 cups milk. Spread pudding mix on top of cake. Having drained syrup from pineapple and used in step 1, mix the pineapple with the Cool Whip. Spread on top of the instant pudding.