Fresh Blueberry Pie

3 pt. blueberries, washed
1 c. sugar
3 1/2 tbsp. cornstarch
1/2 c. water
1 baked 9" pie shell
Whipped topping, optional

Mash 1 pint blueberries with a potato masher. In 3 quart saucepan, mix sugar and cornstarch. Stir in water and mashed berries. Cook over medium heat, stirring constantly, until mixture comes to a boil. Boil 2 minutes. Remove from heat. Cool. Fold remaining 2 pints berries into cooled mixture. Pile in baked pie shell. Chill. Serve with whipped topping if desired.

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