8 medium apples (3 different types, such as Granny Smith, Haralson and Honeycrisp, or any three you like), peeled, cored and cut into 1-inch chunks
1 cup sugar, plus more for dusting the pie
Grated zest and juice of 1 lemon
2 tablespoons dark rum, optional
1 teaspoon vanilla extract
5 tablespoons cornstarch
1/2 teaspoon freshly grated nutmeg
Pinch salt
All-purpose flour, for rolling the dough
Leaf Lard Crust, recipe follows
2 to 3 tablespoons unsalted butter, cold, cut into thin pats
Heavy cream, for the pie wash
2 1/2 cups all-purpose flour
2 tablespoons sugar
3/4 teaspoon fine seat salt
6 ounces rendered leaf lard, cold, cut into cubes
2 tablespoons unsalted butter, cold, cut into cubes
4 to 6 tablespoons ice water