This pie is not as sweet as some. I don't like fruit pies sickeningly sweet (but just a tad on the tart side), but if you like yours sweeter, just increase the sugar. You might also want to consider your berries before adding the sugar- taste one first and see. Early season ones are often not as sweet and may need a bit more sugar. Be sure to watch the crust on your pie and cover it with foil or a guard if it starts to brown excessively.
- Preheat oven to 425°F.
- Place half the rolled pastry crust into the bottom of a 9-inch glass pie plate.
- Rinse berries and allow to drain (make sure they are dry when you use them- you can blot them with paper toweling if needed).
- Mix berries with the cornstarch and 1/2 cup sugar until all the sugar and cornstarch is taken up.
- Place coated berries on the bottom crust in the pie plate.
- Top berries with rolled pastry crust.
- Entwine the upper and lower edges of crust and crimp to form a seal.
- Beat egg white until frothy in a small dish.
- Using a brush, coat top crust lightly with egg white.
- Sprinkle crust with 2 tbsp sugar.
- Using a sharp knife, cut several vents in the top crust.
- Place pie plate on a baking or cookie sheet and bake in preheated oven for 35-40 minutes.
- Watch the crust on the pie that it doesn't brown too much--cover with foil or a crust guard if necessary.
- Cool pie thoroughly on a wire rack before serving.