Pork Roast with a Walnut-Parmesan Crust
Ingredients: 3/4 cup walnut halves2 tablespoons unsalted butter1 medium onion, minced1/4 cup toasted fine bread crumbs2 tablespoons finely chopped flat-leaf parsley2 teaspoons finely chopped sage1/4 cup freshly grated Parmesan cheeseSalt and freshly ground pepper3 pounds boneless pork shoulder roast, butterflied1 tablespoon extra-virgin olive oilWater1/4 cup dry red wine1/2 cup chicken stock...