Macher Jhol is a traditional Bengali fish curry that is a staple in Kolkata. It is made with a variety of fish, such as Rohu or Hilsa, cooked in a flavorful gravy made with onions, tomatoes, ginger, garlic, and a blend of spices. The curry is typically served with steamed rice or roti (Indian bread). Macher Jhol is known for its delicate flavors and is a must-try dish for seafood lovers visiting Kolkata.