01 - Place the halal beef brisket in a large stockpot. Cover with water and add salt, peppercorns, coriander seeds, mustard seeds, cloves, bay leaves, onion, garlic, and ground allspice.
02 - Bring to a boil over high heat. Reduce to a gentle simmer, cover, and cook for 2.5 hours, skimming any foam from the surface as needed.
03 - Add potatoes, carrots, celery, and parsnip (if using). Simmer for 15 minutes.
04 - Add cabbage wedges and cook for an additional 20–25 minutes, until the vegetables and meat are tender.
05 - Carefully remove the brisket and let it rest for 10 minutes before slicing against the grain.
06 - Arrange sliced beef and vegetables on a platter. Ladle some broth over the top and season with freshly ground black pepper. Serve hot.