1. Preheat the oven to 160 degrees.
2. Mix the ginger, all spice, salt and pepper together and rub into the beef.
3. In a medium bowl, combine the vinegar, tomato puree, brown sugar, onion, garlic together with 150ml of water.
4. Spoon half the sauce into an oven proof dish.
5. Place the beef in the dish and spoon the remaining sauce over the top.
6. Cover tightly with foil and place on the middle shelf of the preheated oven.
7. Bake for the brisket 3 hours and remove from the dish.
8. Skim any fat from the surface of the sauce.
9. Transfer the sauce to a medium saucepan; bring to the boil over a high heat.
10. Boil for 5 minutes to reduce slightly.
11. Slice the brisket against the grain, spoon over the sauce and serve with mash and seasonal vegetables.

Source: Our Collection - Farmison