1 teaspoon cooking oil for greasing the baking tray
Wash and clean the fish. Pat dry the fish with kitchen paper towels. Make slits on fish . Apply salt, turmeric , lime juice ans salt. Keep aside for half an hour. Apply marinade and keep aside for 1 hour.
Grease baking tray with little oil. Keep fish apart. Bake the fish in an oven for about 300 * C for about 20 minutes / till get golden brown colour. Serve with onion rings and lemon wedges. Mackerel is good for health. and it contains omega- 3 fatty acids Baking of fish consumes only very little oil.