Add the soaked kudampuli along with its soaking water.
Pour in the thin coconut milk and stir.
480 ml thin coconut milk
Cover and bring to a full boil.
Add the shrimp and stir.
Salt
Cook for 3 minutes.
Pour in the thick coconut milk and stir.
240 ml thick coconut milk
Remove from the heat as soon as it comes to a boil.
Add a drizzle of coconut oil, cover and let rest briefly.
Serve hot with rice.
Notes
This dish is a chemmeen curry from Kerala, on the Malabar Coast in southern India. Its two defining ingredients are coconut milk, added in two stages (thin first, thick at the end), and kudampuli, the Malabar tamarind that lends a smoky tang.Kudampuli can be hard to find in France. Substitute a tablespoon of tamarind paste, or, failing that, a splash of lime juice added at the end of cooking; the flavor will be brighter and less smoky.The first pressing yields thick, creamy coconut milk, while the second yields a thinner milk. With canned coconut milk, use the liquid portion as thin milk and the cream on top as thick milk, or dilute some coconut milk with water.The shrimp cook in just 3 minutes: any longer and they become tough. Add them only after the coconut milk sauce has come to a boil.