handful chopped fresh coriander, leaves and stalks
6 garlic cloves, peeled, left whole
2cm/¾in piece ginger, peeled and cut in half
1 onion, finely chopped
2 tomatoes, blended to a pulp in a food processor
3 black cardamom pods, left whole
5 green cardamom pods, left whole
½ tsp red chilli powder
1 cinnamon stick
4 cloves, left whole
2 tsp ground coriander
2 tsp ground cumin
2 tsp ground fennel seeds
1½ tsp garam masala
1 piece of mace
7 black peppercorns, left whole
salt, to taste
5 tbsp vegetable oil
3 tbsp plain yoghurt, stirred
750g/1½lb lamb or mutton, cut into pieces