||Place a large, heavy based lidded saucepan over a high heat. Brown the lamb in the oil in 2 batches for 3 minutes or until coloured.
||Return all the meat to the pan, add the curry paste, onion, garlic and ginger and stir well. Add the tomatoes and 350ml water and bring to the boil. Cover and cook for 1 hour over a low heat, stirring occasionally.
||Add the potatoes and replace the lid. Cook for 30 minutes or until the lamb and potatoes are tender, removing the lid for the last 10 minutes. Stir every now and then.
||Garnish with coriander leaves and serve with rice or Indian bread and a shaved cucumber salad.