1tablespoonbeaten egg mixed with 1 tablespoon water
Preheat your oven to 350 degrees. Place a pie crust in the bottom of a standard pie pan. In a bowl, mix the berries, sugar, cornstarch, salt and lemon juice and place in crust. Roll out the second crust and cut strips to make a lattice top, weaving the strips together.
With a pastry brush or the back of a spoon, brush a light coating of the egg wash over your crust. Cut away any long strips of pie crust and crimp the edges or press around the edge with a fork to seal the crusts together.
Dot with butter and sprinkle with one tablespoon of granulated sugar before baking. Bake 50-55 minutes until golden and bubbly. If your crust starts to get too brown, cover it with aluminum foil while it bakes