Kolkata Mutton Kosha is a traditional Bengali meat dish that is slow-cooked to perfection. It is made with tender pieces of mutton marinated in a mixture of yogurt, ginger-garlic paste, and a blend of spices. The marinated mutton is then cooked with onions, tomatoes, and a variety of aromatic spices until it becomes tender and flavorful. Kolkata Mutton Kosha is often enjoyed with steamed rice or paratha and is a favorite among meat lovers in Kolkata.