This is a fragrant, creamy, yet tangy, dish of prawns cooked in coconut milk. It is a relatively dry dish - the prawns should end up being coated In the sauce, rather than swimming in it.
Cover the pieces of tamarind with a little water, bring to the boil and simmer for 2 or 3 minutes, then set aside for 1 hour. Meanwhile, remove the head and shell from each prawn but leave the tail shell on. Cut down the back of each prawn so that they will open up like butterflies when cooked. With the point of the knife, remove the thin black intestinal vein that runs