The Best Apple Pie Recipe

Ingredients

• 2¾ cups all-purpose flour, (spooned into measuring cup and leveled-off)
• 3 tablespoons granulated sugar
• 1 teaspoon salt
• ¼ teaspoon baking powder
• 18 tablespoons (2 sticks + 2 tablespoons) cold unsalted butter, (sliced into 1-inch pieces)
• 7 tablespoons ice cold water
• 4½ pounds baking apples (about 8 large apples; see note), (peeled, cored, and sliced ¼-inch thick)
• 1 tablespoon fresh lemon juice, (from 1 lemon)
• 1 cup (packed) dark brown sugar
• Heaping 1/4 teaspoon salt
• Heaping 1/4 teaspoon ground cinnamon
• 2 tablespoons all-purpose flour
• 2 tablespoons cornstarch
• A beaten egg, heavy cream, or milk, (for brushing over crust)
• 2 tablespoons granulated or turbinado sugar, (for topping the pie)