Summer Berry Pie - cooking recipe

Ingredients

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

Preparation

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.