Spiced Peach Pie with Buttermilk Crust

Name: Spiced Peach Pie with Buttermilk Crust
Ingredients: 2 1/2 cups all purpose flour; 5 teaspoons sugar; 1/2 teaspoon salt; 6 tablespoons chilled unsalted butter, cut into 1/2-inch pieces; 1/4 cup frozen lard or solid vegetable shortening, cut into 1/2-inch pieces; 3/4 cup plus 2 tablespoons (about) chilled buttermilk; 3/4 cup plus 1 tablespoon sugar; 1/4 cup all purpose flour; 1 1/2 teaspoons fresh lemon juice; 1/2 teaspoon ground cinnamon; 1/4 teaspoon ground cardamom; 3 3/4 to 4 pounds ripe peaches; 2 tablespoons unsalted butter, cut into small pieces; 1 egg, beaten to blend (for glaze)