Recipe Tip Make sure to not disturb the fish for a few minutes once it hits the pan. This will ensure the masala remains stuck to the fish while frying. Share your version of this recipe How do you make Mackerel Fish Fry at home? What ingredients do you use to marinate the fish? Share your version with us. Frequently Asked Questions Can I make a water-based marinade? Yes. You can add the masalas and mix them. Then you can add water and 1 tablespoon of rice flour, cornflour and all-purpose flour. Make sure the marinade paste is not too runny. When should I place the fish in the oil for frying? Make sure the oil is smoky hot. Then lower the flame and place the fish in the oil for frying.