1 Heat 3 tbsp oil in a frying pan, and when it’s almost smoking, add half the
mustard seeds, the fenugreek, ginger and half the curry leaves. Stir-fry for a
few seconds, then add the onion and cook over a medium heat until it’s dark
golden.
2 Add the chilli powder, coriander and turmeric, and stir for a few
seconds. Add the tomato and kokum (or tamarind). Simmer until slightly reduced
and you can start to see oil separating from the sauce. Add a few tablespoons of
water to get the sauce back to the consistency it was before, season with salt
and add the prawns. Simmer until the prawns are cooked and the sauce is quite
dry. Then add the coconut milk, bring back to boil and turn the heat down to
low.
3 In another pan, heat 1 tbsp oil, the dried chillies, and remaining
mustard seeds and curry leaves. Fry for 10 seconds or so, then tip into the
curry. Serve with basmati rice.