4 c. blueberries
1 9" pie crust, baked
1 c. sugar
1 c. water
1/3 c. flour
3 tbsp. butter
1/4 tsp. salt

Place 3 cups blueberries in pie crust. Mix 1 cup blueberries with sugar, flour and water. Stir over heat until thick and clear. Place mixture in blender; blend until smooth, adding butter and salt. Pour over berries in pie crust and refrigerate 4 hours. Top with whipped cream.