1 baked 9 inch pie shell
1 c. sugar
1/4 tsp. salt
1 tbsp. butter
4 c. fresh or frozen blueberries
3 tbsp. cornstarch
1/4 c. water

Line baked pie shell with 2 cups blueberries. To make sauce, cook remaining berries with sugar, cornstarch, salt and water over medium heat until thickened. Remove from heat and add butter and cool. Pour over berries. Chill until serving time. If desired, top with whipped cream.