01 - Preheat oven to 325°F.
02 - Rinse the corned beef brisket under cold water and pat dry. Place it fat-side up in a large Dutch oven or oven-safe pot.
03 - Sprinkle the included spice packet over the brisket. Add garlic, bay leaves, peppercorns, and allspice.
04 - Pour in beef broth and water to cover the brisket.
05 - Cover tightly with a lid and cook in the oven for 2 hours.
06 - After 2 hours, add potatoes, carrots, parsnips, and onion around the brisket. Cover and continue cooking for 45 minutes.
07 - Add cabbage wedges on top. Cover and cook for an additional 30–40 minutes, until vegetables and brisket are fork-tender.
08 - Remove brisket and vegetables to a platter. Let brisket rest 10 minutes before slicing against the grain. Serve with vegetables and some cooking broth.