Rainbow Jello Cake - cooking recipe

Ingredients

1 pkg. white cake mix
1 (3 oz.) pkg. jello (any color)
1 c. boiling water
1/2 c. cold water
2 c. Cool Whip

Preparation

Prepare cake mix as directed.
Put in a 13 x 9-inch pan.
Cool 15 minutes.
Prick holes every 1/2 inch.
(A straw works pretty well to do this.)
Dissolve jello in boiling water.
Add cold water.
Pour jello mix over cake, making sure it goes in the holes.
Chill for 3 to 4 hours.
Top with Cool Whip.