01 - Preheat oven to 325°F.
02 - Place corned beef in a large Dutch oven. Sprinkle with included seasoning packet, bay leaves, peppercorns, and smashed garlic.
03 - Pour in beef broth and water until meat is nearly submerged.
04 - Bring liquid to a simmer over medium heat. Cover tightly and transfer to oven. Braise for 2 hours.
05 - Remove pot from oven. Arrange potatoes, carrots, celery, and onion around the beef. Cover and return to oven for 45 minutes.
06 - Nestle cabbage wedges into the liquid. Cover and cook 30–40 minutes longer until beef and vegetables are fork-tender.
07 - Transfer beef to a cutting board and rest 10 minutes. Slice thinly against the grain. Arrange vegetables on a platter and top with beef.
08 - Garnish with fresh parsley. Serve alongside Dijon mustard or horseradish.