Rainbow Cake - cooking recipe

Ingredients

1 pkg. Duncan Hines white cake mix
1 pkg. Jell-O
1 container Cool Whip

Preparation

Bake cake as directed on package in a 13 x 9 x 2-inch pan. After cool, take cake and punch holes throughout with fork.
Mix Jell-O of your choice as directed on package and pour over cake. Put in refrigerator overnight.
Spread Cool Whip over cake (thickness of your choice).
Cut and serve.