Watermelon Slices
["2 pkg. (4 serving size) or 1 pkg. (8 serving size) Jell-O brand watermelon flavor gelatin", "2 c. boiling water", "1 c. cold water", "1 c. thawed Cool Whip whipped topping", "3 drops green food coloring", "chocolate sprinkles"]
["Dissolve gelatin completely in boiling water in medium bowl. Stir in cold water.", "Pour into 8-inch round cake pan."]
["gelatin", "boiling water", "cold water", "topping", "chocolate sprinkles"]