- STEP 1
Roast the cumin and coriander seeds in a dry frying pan until fragrant and then grind in a pestle and mortar or a spice grinder. This is known as 'dhana-jeeru' and features frequently in Indian cooking.
- STEP 2
Melt the butter with the oil in a large pan and add the onion, cloves, cassia (or cinnamon), and peppercorns. Cook, stirring occasionally, over a medium high heat until the onion is well browned.
- STEP 3
Discard the cassia (or cinnamon). Add 1 tablespoon of the dhana-jeeru mix, the garam masala, and the turmeric and fry for about 30 seconds stirring.
- STEP 4
Add the tin of tomatoes and break them up with a spatula. Peel and mince the garlic and ginger and add to the pan with the chillis.
- STEP 5
Cook the mixture over a medium heat for about 10 minutes, until the oil separates from the mixture at the edges.
- STEP 6
Add the minced lamb and break up and mix into the mixture. Cover and cook over a low simmer for 35-45 minutes, adding the peas 10 minutes before the end. Check the seasoning and add more salt and garam masala if reqired.
- STEP 7
Like most curries, this dish is best when cooled then reheated to allow the flavours to infuse, but this is optional. Reheat in the pan and serve with rice and / or chapattis.