1 (10 oz.) pkg. frozen slice strawberries
1 c. boiling water
1 (3 oz.) pkg. strawberry gelatin
1 c. Cool Whip

Drain strawberries, reserve syrup; pour boiling water over gelatin in bowl; stir until dissolved; add enough cold water to reserved syrup to measure 1 cup. Stir into dissolved gelatin; chill until almost set. Mix with mixer until foamy; add Cool Whip and stir; refrigerate.