Illishi (Hilsha) Fish: 500 grams
Soriso (mustard seeds)- 3 teaspoons
Posto (Poppy seeds) - 1.5 teaspoons
Garlic- 4 cloves, Jeera (Cumin) - Half spoon
onions - 1 small (diced), Green chillis - 8 pieces
Turmeric- 1 teaspoon
Method:
Masala - Soak mustard seeds, poppy seeds, cumin, 2 green chillis, galic in a small bowl with water. Set aside for 1 hour and grind to a fine paste.
Wash and clean the fish pieces. Add the masala paste, oil (2 spoons. preferably mustard oil), salt, turmeric to the raw fish and marinade for 15 - 20 minutes. Get 2 medium size banana leaves. In a pan, put 2 banana leaves on the bottom of the pan. Lay the fish pieces properly on top of the leaves. Put 1 spoon of oil and slit green chillis on the fish and then cover with 2 more banana leaves. Seal the edges of the leaves using toothpicks. Cook in low heat for 20 - 25 minutes
If you wish to turn the fishes you may do so but cook till the bottom of the leaves turn slight brown.