01 - Rinse the corned beef brisket under cold water and pat dry. Place it, fat side up, in the bottom of a large slow cooker. Sprinkle the included spice packet over the meat.
02 - Arrange the onion, carrots, celery, and potatoes around the brisket.
03 - Add bay leaves, peppercorns, cloves, and garlic. Pour in the beef broth until the brisket and vegetables are nearly covered.
04 - Cover and cook on low for 8 hours (or on high for 4–5 hours), until the brisket is fork-tender.
05 - With 2 hours left, carefully add the cabbage wedges on top of the brisket and vegetables. Re-cover and continue cooking until cabbage is tender.
06 - Transfer the brisket to a cutting board and let it rest for 10 minutes. Slice against the grain.
07 - Serve the sliced brisket with vegetables and cabbage. Spoon some cooking liquid over the top for extra flavor.