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U.S. measurements first, metric equivalents in parentheses. Conversions are approximate; oz means weight ounces, not fluid ounces.
4 hilsa (ilish) steaks, approx. 6 oz (170 g) each (estimate: Hilsa is not represented by a supported catalog match. Atlantic herring is a practical, explicitly labelled oily-fish species example, not a claim that hilsa and herring are equivalent. Edible mass estimated at 75% of the stated 1 lb 8 oz (680 g) gross bone-in w) 3 tbsp (30 g) yellow or brown mustard seeds 2 tbsp (20 g) poppy seeds (posto) 1/2 cup (60 g) fresh grated coconut (optional) 4 green chilies, split lengthwise 1 tsp (5 g) turmeric powder 1 tsp (4 g) sugar 2 tsp (10 g) salt, or to taste 4 tbsp (60 ml) mustard oil, divided 2 tbsp (30 ml) water (to adjust paste) Banana leaves for wrapping or heavy-duty aluminum foil 2 tbsp (8 g) chopped fresh cilantro for garnish
4 hilsa (ilish) steaks, approx. 6 oz (170 g) each (estimate: Hilsa is not represented by a supported catalog match. Atlantic herring is a practical, explicitly labelled oily-fish species example, not a claim that hilsa and herring are equivalent. Edible mass estimated at 75% of the stated 680 g gross bone-in w) 3 tbsp (30 g) yellow or brown mustard seeds 2 tbsp (20 g) poppy seeds (posto) 1/2 cup (60 g) fresh grated coconut (optional) 4 green chilies, split lengthwise 1 tsp (5 g) turmeric powder 1 tsp (4 g) sugar 2 tsp (10 g) salt, or to taste 4 tbsp (60 ml) mustard oil, divided 2 tbsp (30 ml) water (to adjust paste) Banana leaves for wrapping or heavy-duty aluminum foil 2 tbsp (8 g) chopped fresh cilantro for garnish
1. Make the mustard-poppy paste and marinate the fish: soak the mustard seeds and poppy seeds in warm water for 10 minutes, drain, then grind with grated coconut (if using), turmeric, sugar, salt, and 2 tbsp (30 ml) mustard oil to a smooth paste, adding up to 2 tbsp (30 ml) water to loosen. Rub the paste evenly over both sides of the hilsa steaks and slide 1 split green chili under the skin of each steak. Place each steak on a banana leaf (or a square of foil), drizzle with the remaining 2 tbsp (30 ml) mustard oil, fold the leaves/foil to seal the parcels. 2. Steam and finish: arrange parcels in a steamer or on a rack over 1–2 inches (25–50 mm) simmering water, cover, and steam for 12–15 minutes until fish flakes easily. Carefully open parcels, transfer fish to a serving platter, scatter chopped cilantro and remaining split chilies on top, and pour a spoonful of very hot mustard oil over the fish for aroma before serving. Serve immediately with steamed rice.
Per serving | Servings: 4
Nutrition estimated: November 6, 2026
*Values are estimates based on USDA data and mathematical calculations. Actual values may vary. Where data are unavailable, those contributions are excluded. Calories, Carbohydrates, Protein, Fat, Saturated fat, Fiber, Sodium, Potassium, Calcium, Iron, Vitamin A and Vitamin C are known subtotals. Missing contributions are unknown, not zero.