Shorshe Ilish
Hilsa fish steaks cooked in a pungent mustard and green chili paste.
About this dish
The ultimate obsession of the Bengali palate, Shorshe Ilish celebrates the Hilsa fish, known as the 'Queen of Fish'. This dish is most popular during the monsoon season when Hilsa is abundant and fatty. The recipe is a masterclass in minimalism, relying entirely on the sharp, sinus-clearing pungency of mustard oil and black mustard seeds to complement the rich, oily profile of the fish.
Ingredients
The Fish
- 4-5 steaks Hilsa (Ilish), 1-inch thick
- 1/2 tsp Turmeric powder
- 1/2 tsp Salt
The Mustard Paste
- 3 tbsp Black mustard seeds
- 1 tbsp Yellow mustard seeds
- 4-5 Green chilies
- 1/2 tsp Salt (to prevent bitterness while grinding)
- 1/4 cup Water
The Gravy
- 4 tbsp Mustard oil (high quality)
- 1/2 tsp Nigella seeds (Kalo Jeera)
- 3-4 Green chilies, slit
- 1/2 tsp Turmeric powder
- 1 cup Warm water
Method
- 1
Marinate the Fish
Wash the Hilsa steaks gently and pat dry. Rub them thoroughly with 1/2 tsp turmeric and 1/2 tsp salt, then let them sit for 10-15 minutes to allow the salt to penetrate the oily flesh.
- 2
Prepare Mustard Paste
Soak mustard seeds in warm water for 10 minutes, then grind them with green chilies and a pinch of salt into a very smooth paste. Using both black and yellow seeds provides a balance of pungency and color.
- 3
Strain the Mustard (Optional)
For a smoother, less bitter gravy, pass the mustard paste through a fine sieve using a little water. This removes the hulls of the seeds which some find difficult to digest.
- 4
Flash Fry (Optional)
Traditionalists often cook the fish raw in the gravy, but you can lightly sear the steaks in mustard oil for 30 seconds per side. Do not brown them; the fish should remain extremely soft.
- 5
Temper the Oil
Heat the mustard oil in a wide pan until it smokes, then cool slightly. Add nigella seeds and slit green chilies; they should sizzle immediately, releasing a nutty aroma.
- 6
Whisk the Sauce
In a bowl, mix the mustard paste with 1 cup of water, turmeric, and a little more salt. Pour this mixture into the pan and bring it to a gentle simmer over medium heat.
- 7
Poach the Fish
Gently slide the fish steaks into the bubbling mustard gravy. Cover the pan tightly and cook on low heat for 8-10 minutes, turning the steaks once halfway through with extreme care as Hilsa is very delicate.
- 8
Check the Consistency
The gravy should be thick enough to coat the fish but not dry. If it's too thin, simmer uncovered for 2 minutes; if too thick, add a splash of hot water.
- 9
The Raw Finish
Turn off the heat and drizzle 1 tablespoon of raw, cold-pressed mustard oil over the dish. Cover immediately and let it rest for 5 minutes to trap the sharp mustard vapors.
Notes & variations
- Never overcook Hilsa; its beauty lies in its soft, buttery texture which turns rubbery if over-fried.
- The addition of salt while grinding mustard is crucial to prevent the paste from turning bitter.
- If you cannot find Hilsa, Shad or Mackerel are the closest substitutes, though the flavor profile will differ.
- Adjust the number of green chilies based on your heat tolerance; the dish should be spicy and pungent.
Serve with
A mound of steaming hot, long-grain Govindobhog or Basmati rice.
Cook's note
The final drizzle of raw mustard oil is non-negotiable; it provides the 'jhal' (pungency) that defines this dish.