RASPBERRY POKE CAKE

1 package (2 layer size) white cake mix
1 package (3 oz) Jello brand raspberry flavor (or flavor of your choice)
1 cup boiling water
1/2 cup cold water

Bake cake mix as directed on box, baking a 13 x 9 pan at 350 degrees for 30 to 35 minutes. Cool 15 minutes then poke with fork at 1/2 inch intervals. Dissolve gelatin in boiling water. Add cold water and spoon over cake in pan. Chill 3 to 4 hours. Top with thawed cool whip