Summer Berry Pie - cooking recipe

Ingredients

1 1/2 c. raspberries
1 1/2 c. sliced strawberries
1 c. blueberries
1 (9-inch) baked pie shell
3/4 c. sugar
3 Tbsp. cornstarch
1 1/2 c. water
1 pkg. (4 serving) jello (strawberry)
8 oz. Cool Whip nonfat topping

Preparation

Mix all berries in a large bowl.
Pour in pastry shell.
Mix sugar and cornstarch in medium saucepan.
Stir in water gradually until smooth.
Cook, stirring constantly, on medium heat until mixture comes to boiling point.
Boil 1 minute.
Remove from heat. Stir in jello until dissolved.
Cool to room temperature.
Pour over berries in pastry shell.
Refrigerate 3 hours until set. Serve with topping.