01 - Thoroughly rinse the halal beef brisket under cold running water to remove any excess brine. Transfer the prepared brisket to a large stockpot.
02 - To the stockpot containing the brisket, add the 6 cups of water, bay leaves, whole black peppercorns, cloves, mustard seeds, coriander seeds, cinnamon stick, crushed garlic, and quartered onion. Bring the mixture to a gentle boil over medium-high heat, then reduce the heat to maintain a steady simmer.
03 - Cover the stockpot and allow the brisket to simmer for 2 hours. During this period, periodically skim any foam or impurities that rise to the surface of the braising liquid to ensure clarity.
04 - After the initial 2-hour simmering period, add the prepared carrots, potatoes, and rutabaga to the pot. Continue to simmer uncovered for an additional 30 minutes, allowing the root vegetables to begin softening.
05 - Carefully introduce the cabbage wedges to the pot. Continue simmering for another 15 minutes, or until both the vegetables and the beef brisket are uniformly tender when pierced with a fork.
06 - Carefully remove the cooked brisket from the pot. Transfer it to a cutting board and allow it to rest for 10 minutes before thinly slicing it against the grain to maximize tenderness.
07 - Artfully arrange the sliced beef and tender vegetables on a large serving platter. Ladle a small amount of the flavorful braising broth over the ensemble and garnish generously with the freshly chopped parsley.
08 - Serve the St. Patrick's Day Halal Corned Beef and Cabbage immediately, offering coarse mustard or horseradish on the side for an enhanced flavor profile, if desired.