Deep-Dish Apple Pie

All-Butter Pie Pastry

2 ½ cups unbleached all-purpose flour, (12 1/2 ounces), plus additional flour for work surface

1 teaspoon table salt

1 tablespoon sugar

16 tablespoons unsalted butter, (2 sticks), cold, cut into 1/2-inch cubes and frozen for 10 minutes

3 tablespoons sour cream

⅓ cup ice water, or more if needed

Apple Filling

½ cup granulated sugar, (3 1/2 ounces), plus 1 teaspoon

¼ cup packed light brown sugar, (1 3/4 ounces)

¼ teaspoon table salt

1 tablespoon lemon juice

½ teaspoon grated lemon zest

⅛ teaspoon ground cinnamon

2 ½ pounds tart apples, (firm), about 5 medium, peeled and cut into 1/4-inch-thick slices (see note)

2 ½ pounds sweet apples, (firm), about 5 medium, peeled and cut into 1/4-inch-thick slices (see note)

1 egg white, beaten lightly