Tri-Berry Pi From the (not-so) Frozen North

With Spring around the corner, thoughts turn to pie and picnics. For this delicious Tri-Berry Pie you will need the following ingredients.

Equipment

9" Pie Pan
Rolling Pin
Fork (in our case a spork...)
Small Knife
Cooling Rack

Crust

2 cups of All Purpose Flour
1 1/2 sticks Unsalted Butter (well chilled, cut into 1/4" cubes)
1/2 teaspoon White Sugar
1/4 teaspoon Salt
1/3 cup of Cold Water

Egg Wash

1 egg, beaten

Filling

4 cups of a Mix of Fresh Blueberries, Raspberries, and Blackberries
2/3 of a cup of White Sugar
1/4 cup All Purpose Flour
1 1/2 tablespoons Lemon Juice
1/2 tablespoon Butter

Notes

This pie can be made as a traditional double crust. For this you will need to make a second batch of dough.

Step 1: Crust Ingredients

You will need:

2 cups of All Purpose Flour
1 1/2 sticks Unsalted Butter (well chilled, cut into 1/4" cubes)
1/2 teaspoon White Sugar
1/4 teaspoon Salt
1/3 cup of Cold Water