Summer Berry Pie
["3/4 c. sugar", "3 Tbsp. cornstarch", "1 1/2 c. water", "1 pkg. Jell-O (red flavor)", "1 c. each: blueberries, raspberries and sliced strawberries", "1 pie crust (graham cracker)", "2 c. thawed Cool Whip"]
["Mix sugar and cornstarch in medium saucepan.", "Gradually stir in water until smooth.", "Stirring constantly, cook on medium heat until mixture comes to boil; boil 1 minute.", "Add Jell-O.", "Let cool.", "Put in pie crust."]
["sugar", "cornstarch", "water", "Jell-O", "blueberries", "pie crust"]