Daab Chingri is a traditional Bengali dish made with prawns cooked in a coconut shell. The prawns are marinated in a flavorful mixture of spices, coconut, and mustard oil, and then cooked inside a tender green coconut shell. The dish is slow-cooked, allowing the flavors to meld together and infuse into the prawns. The result is a deliciously aromatic and creamy prawn curry, with the natural sweetness of the coconut complementing the spices perfectly.