5 c. fresh blackberries
3/4 c. sugar
1 tbsp. cornstarch
1/8 tsp. salt
2 tbsp. butter
Pastry for 9 inch pie
1 tbsp. milk
1 tbsp. sugar

Place blackberries in a 9 inch square baking dish. Combine sugar, cornstarch, and salt, mixing well. Sprinkle over blackberries. Dot with butter. Roll pastry out on a lightly floured surface to a 9 inch square. Place pastry on top of blackberries; trim edges and seal. Make several slits in top to allow steam to escape. Brush pastry with milk; sprinkle with sugar. Bake at 425 degrees for 30 minutes.