Betki Fish Kalia (sometimes spelled Bhetki Kalia) is a classic Bengali dish that celebrates the delicate flavor of the betki (barramundi or Asian sea bass) in a rich, spiced gravy.Here’s a breakdown:Fish: Betki fillets or steaks — prized for their soft, flaky texture and mild taste.Cooking style:Kalia refers to a thick, spicy, often slightly oily gravy typical of festive Bengali dishes.Base ingredients: Onion, ginger, garlic, tomatoes, yogurt (optional), green chilies, and a blend of spices like turmeric, cumin, coriander, and garam masala.Flavor: The result is a deeply aromatic curry with layers of sweetness from caramelized onions and warmth from the spices.Traditionally, the fish pieces are lightly fried first, then simmered in the gravy until tender and infused with flavor. It’s often served with basmati rice or pulao, sometimes even with luchi or paratha.