1 pkg. yellow or white cake mix
1 sm. pkg. Jello gelatin mix (any flavor)
Cool Whip

Prepare cake as directed on package. Let cool. Poke holes all over the cake with a two pronged fork. Mix Jello as directed on package and pour warm liquid over cake into the holes. Cover and place in the refrigerator to let Jello set (several hours). Very moist and tasty topped with Cool Whip.