Fry onions, spices, leftover lamb, stock and tomato puree. Simmer for 15 minutes for a simple week-night curry. Keto friendly.
Fry the onion for a few minutes. Add garlic and fry for about 2 minutes.
Add the lamb, curry powder, turmeric and flour. Stir well to make sure that the lamb is coated in the flour and spice mixture. Then cook for at least two minutes to get rid of the taste of the flour and bring out the fragrance of the spices.