Coat diced beef in salt, pepper and cornflour
Fry beef on medium high heat with oil to brown
Add sliced onions, garlic, ginger, tomato puree and chopped chilli, frying everything together for 3-4 minutes
Transfer everything to the slow cooker pot
Add turmeric, ground coriander, chilli powder, cumin, paprika, fenugreek, curry powder, sugar, coconut milk, beef stock and potatoes
Stir everything together
Cover and cook on High for 4-5 hours or Low for 6-7 hours
Garnish with fresh coriander and serve with rice
