Warming lamb curry

Method

1. To make the curry paste, grind all the ingredients, except the onion, tomato purée and garlic, in a pestle and mortar to a powder. Transfer to a food processor with the remaining ingredients and whizz to a paste.
2. Put the lamb in a bowl and coat with the curry paste. Set aside. Heat the butter/ghee in a flameproof casserole with a lid, then fry the onion, bay, cinnamon and chillies over a low-medium heat for 10-12 minutes until deep golden.
3. Turn up the heat, then fry the lamb, stirring often, until the paste starts to catch on the bottom of the pan.
4. Add the coconut water and enough cold water to just cover the meat. Cover and simmer for 30 minutes.
5. Remove the lid and gently simmer for 45 minutes or until the meat is tender and the sauce reduced. Stir in the lemon juice and simmer for 2 minutes. Scatter with the coriander leaves, then serve with rice, poppadoms and raita, if you like.