1 box white cake mix
1 lg. container Cool Whip
2 (10 oz.) pkgs. strawberries, drained (reserve juice)
1 lg. pkg. Jello gelatin (strawberry)

Mix and bake cake according to package directions for a 13x9-inch cake. While cake bakes, mix Jello according to directions, using reserved strawberry juice as part of the liquid.

After cake bakes, leave in the pan and prick well all over with a fork. Pour Jello over cake. Chill several hours. Just before serving, spread strawberries on cake; top with Cool Whip.