Stuffing Waffles with Cranberry Concord Syrup

Name: Stuffing Waffles with Cranberry Concord Syrup
Ingredients: 1 pound frozen cranberries; 1 1/4 cups concord grape jam; 3/4 cup concord grape juice; 1/3 cup sugar; One 3-inch strip orange zest; Nonstick cooking spray, for the waffle iron; 4 1/2 cups leftover stuffing, such as Cranberry-Walnut Stuffing, recipe follows; 1/3 cup milk; 3 large eggs; 3 tablespoons unsalted butter, plus more for the baking dish; 1 1/2 cups walnuts; 8 ounces sweet Italian sausage, casings removed; 2 celery stalks, chopped; 1 medium onion, chopped; Kosher salt and freshly ground black pepper; 1 cup dried cranberries; One 14-ounce package cornbread stuffing mix; 1 tablespoon finely chopped fresh sage; 2 teaspoons finely chopped fresh thyme; 2 cups turkey or chicken stock; 1 large egg, lightly beaten