Combine in saucepan:
3/4 cup sugar
3 tbsp. cornstarch
Add:
2 cups fresh blueberries
1/4 cup water
Cook over low heat, stirring constantly until mixture thickens and boils. Remove from heat. Stir in 1 tbsp. butter. Cool.
Baked pie shell (9")
2-3 cups fresh blueberries
Pour these berries into the pie shell. Top with the cooked berries. Chill. Can be garnished with whipped cream.