1 box white cake mix
1 (3 oz.) pkg. Jello (any flavor)
1 c. boiling water
1/2 c. cold water
1 (13"x9") cake pan
1 (8 oz.) Cool Whip

Bake cake as directed on box. Let cool 15 minutes. Poke holes in cake 1/2" apart with meat fork. Dissolve Jello in hot water, add cold water. Spoon over cake in holes. Refrigerate until set. Top with Cool Whip.