Heat the oil in a large pan and sear the beef on all sides.
1 tsp olive oil, 1 kg beef brisket
Boil 250 ml (1 cup) of water and mix with the beef stockpot. Pour the liquid into the slow cooker, then put the beef in the liquid.
1 beef stockpot
Put the lid on and cook for 8-10 hours on low until tender.
After the 8-10 hours, remove the meat from the pot and shred it using two forks. Once it is tender it will shred or "pull" easily.
Discard half the liquid from the base of the slow cooker pot. Add 3 tbsp of tomato puree, 1 tsp of harissa paste, about 20 baby plum tomatoes, halved, and 1 green pepper, chopped. Stir well.
3 tbsp tomato puree, 1 tsp harissa paste, 150 g baby plum tomatoes, 1 green pepper (capsicum)
Cook on low for another hour or so.
Serve with rice/mash/pasta/bread.