Lomo De Cerdo Relleno

Name: Lomo De Cerdo Relleno
Ingredients: 4 ounces Whole almonds toasted, cooled, and finely ground; 1/4 pound Cooked ham finely chopped; 1/4 pound White mushrooms chopped; 2 Hard-boiled eggs chopped; 2 tablespoons Finely-chopped sage; teaspoon (or 2 ½ dried sage, crumbled); 1 teaspoon Salt; 1/2 teaspoon Freshly-ground black pepper; 1 lrg Egg; 3 tablespoons Olive oil; 3 1/2 pounds Boned loin of pork see * Note; 1/2 cup Full-bodied Spanish brandy; 2 cups Rich veal or beef stock; Juice of 1 lemon; 3 tablespoons Cold unsalted butter cut into 6 pieces