Jello cake

1 boxed cake mix
1 Jello package
1 Cool Whip

Make boxed cake mix according to package directions.  While cooking make Jello according to directions on package.  Once cooked and taken out of oven, immediately poke holes in cake (chopsticks work great).  Let cool in fridge till Jello is set and cake is cold the whole way through.  Ice with Cool Whip.

Good combinations are
Chocolate and cherry Jello

Vanilla and any Jello