01 - Rinse corned beef under cold water to remove excess brine. Place in large stockpot with spice packet, bay leaves, peppercorns, mustard seeds, onion, and garlic.
02 - Add water to cover beef by at least 1 inch. Bring to boil over high heat, then reduce to low, cover, and simmer for 2½ hours, skimming foam occasionally.
03 - Add potatoes and carrots to pot. Simmer covered for 20 minutes until slightly tender.
04 - Place cabbage wedges atop vegetables, cover, and cook 20-25 minutes until cabbage is tender and all vegetables are cooked through.
05 - Remove corned beef and rest 10 minutes before slicing against the grain. Arrange sliced beef and vegetables on platter, ladling broth over top if desired.