Double-Crust Apple Cheddar Pie - Imperial Sugar

Ingredients

• 2½ cups all purpose flour
• 3 Tablespoons granulated Imperial Sugar
• ½ teaspoon kosher salt
• 1¼ cups grated sharp cheddar cheese
• ¾ cup unsalted butter, chilled, cut into pieces (1½ sticks)
• 3 ounces of water, ice cold
• 4½ cups peeled, diced Granny Smith apples (about 3)
• 4 cups peeled, diced golden delicious apples (about 3)
• ¾ cup packed light brown Imperial Sugar
• 3 Tablespoons cornstarch
• 1 Tablespoon lemon juice
• ½ teaspoon ground cinnamon
• ¼ teaspoon ground nutmeg
• ¼ cup granulated Imperial Sugar, divided
• 1 large egg, whisked