Nannie, and alternate recipe is as follows:
2 tsp black peppercorns
1 tsp allspice berries
2 tsp juniper berries
6 oz coxxxx sea salt
1/2 tsp powdered mace
1/2 tsp powdered clove
2 tsp dried thyme
8oz dark muscovado sugar
4-5 lb piece of brisket
Open out brisket, pat dry, add all above ingredients, after grinding berries etc, rub in well. Place in non-metal tray, cover, leave in cool place. Turn every day for 3-5 days. Remove meat, pat dry, roll and tie. Place in pan with onion, carrot, bouquet garni, cover with water, bring to boil and simmer for 30 mins per lb. Turn off heat and leave to cool. Remove from stock (makes a spicy soup), slice to serve, keeps for 1 week.