Brined Pork Roast with Red Cabbage and Semmelknödel Recipe

Name: Brined Pork Roast with Red Cabbage and Semmelknödel Recipe
Ingredients: 3 1/2 – 4 1/2 pound bone-in center pork loin roast; 4-6 medium onions, halved; Brine:; 2 small lemons, halved; 5 ounces salt; 1 small onion, halved; 1 small bunch of sage; 10 peppercorns; 36 ounces water; 20 ounces ice water; Cabbage:; 1/2 medium red cabbage, sliced; 6 medium shallots, sliced; olive oil; 2 tablespoons cider vinegar; Kosher salt and cracked black pepper; Semmelknödel:; 1 1-pound loaf Italian Bread; 1 medium onion, diced; 4 ounces (about 4 strips) bacon; 3/4 cup all-purpose flour; 3 eggs; 1/4 cup milk