Remove the pie dish with the bottom portion of dough from the fridge. To add the filling, you can either drain it through a colander or use a slotted spoon to scoop it into the pie dish. Leave out all of the excess liquid that's in the bowl. Dot the top of the filling with the pieces of butter,
Cover the pie with either a lattice or a solid topping with a few slits cut out. See the post for a step-by-step visual if you're unsure how to make a lattice topping. Brush the top of the dough with the lightly beaten egg and sprinkle the top with coarse or sparkling sugar, optional.
Place the pie in the freezer while you wait for your oven to preheat. Arrange your oven rack to the second from bottom position and preheat your oven to 425°F.
Once your oven is preheated, take the pie out of the freezer and place it on a large rimmed baking sheet. Bake the pie for 15 minutes, then, without taking it out of the oven, lower the temperature to 350°F. Bake for 35-40 minutes, cover the top loosely with aluminum foil about halfway so it doesn't burn.
Allow the pie to cool completely at room temperature and then in the fridge before serving.