1 pkg. yellow cake mix
1 pkg. gelatin (any flavor)
1 c. boiling water
1/2 c. cold water
Cool Whip

Prepare cake mix as directed; cool 15 minutes, then poke with fork at 1/2 inch intervals. Dissolve gelatin in boiling water. Add cold water. Spoon gelatin mixture over cake. Chill 3-4 hours; top with Cool Whip. Serve cold.