Strawberry Shortcake
["1 strawberry cake mix", "3 Tbsp. cornstarch", "1 Tbsp. red food coloring", "2 pt. strawberries", "1 (10 oz.) bottle 7-Up", "1 1/2 c. sugar", "1 (16 oz.) bowl Cool Whip"]
["Prepare cake according to directions.", "Bake in two 9-inch pans for 30 minutes at 350\u00b0.", "Cool and split cakes into halves.", "Cook 7-Up, cornstarch, sugar and food coloring until thick, like pudding.", "Slice strawberries and pour mixture over berries; cool. Put Cool Whip and mixture over cake."]
["strawberry cake", "cornstarch", "red food coloring", "strawberries", "sugar"]