In a mixing bowl stir all the oil, spices, fresh ginger, garlic and tomato paste together until well combined.
Place the brisket into a large ovenproof or roasting tray. Rub or brush the spice mix with one tablespoon sea salt into the meat.
Pour the stock into the base of the ovenproof dish or tray and cover the meat tightly with foil or place the lid on top.
Slow cook in the oven for at least 6 hours, turning the meat once or twice.
Alternatively, place the brisket into a slow-cooker and set the timer to low or 7-8 hours.
Once the brisket is cooked through, remove from the roasting tray and pour the juices from the cooking process. Shred the brisket using two forks. Place the meat into a large dish and pour the cooking juices back over the meat.