1 lg. pkg. strawberry Jello
1 c. sugar (less if strawberries are sweetened)
3 1/2 c. boiling water
1 (20 oz.) pkg. frozen strawberries (cut in small pieces)
1/2 of a med. sponge cake

Dissolve Jello in hot water. Let cool and when starting to congeal add strawberries. Pour over cake. Place in a 9 x 12 inch casserole dish. Let congeal. Top with Cool Whip when ready to serve.