1 pkg. white cake mix
1 (3 oz.) pkg. Jello (strawberry, raspberry, lime, or lemon)
1 c. boiling water

Prepare cake mix as directed on package. Bake in 12 x 8 or 13 x 9 inch pan. Flour and grease well and place in 350 degrees oven for 25 to 30 minutes. Cool. Poke holes 1/2 inch apart (use toothpick). Do not remove from pan. Dissolve Jello in bowl with 1 cup boiling water. Pour Jello over cake. Chill 4 hours or longer until ready to serve. Top with Cool Whip.