Bengali Niramish Shorshe Maach
নিরামিষ সরষে মাছ·(nee-rah-mish shor-sheh maach)
Quick Weeknight Tadkas: 20-Minute Dinners
From the Bengali Niramish tradition. A spiced, golden, intensely pungent fish curry that relies entirely on mustard and chilies rather than the standard base of onions and garlic. In the delta region of Bengal, fish is historically woven so deeply into the fabric of daily life that it is sometimes categorized as a "water vegetable." When orthodox religious codes demanded a strictly vegetarian diet, alliums like onions and garlic—viewed as foreign introductions—were forbidden. What emerged from these constraints is an absolute masterpiece of minimalism. By searing thick fish fillets in pungent mustard oil and simmering them in a raw mustard-seed paste, the resulting gravy is sharp, velvety, and incredibly aromatic. It is a brilliant, naturally low-FODMAP gift that proves you don't need a heavy onion base to build profound depth of flavor.
Ingredients
- firm fish fillets (salmon or sea bass)1 1/2 lb
- ground turmeric1/2 tsp
- kosher salt1/2 tsp
- black mustard seeds1 tbsp
- yellow mustard seeds1 tbsp
- fresh green chilies2 med
- kosher salt1/2 tsp
- ice cube1 small
- mustard oil3 tbsp
- kalonji (nigella seeds)1/2 tsp
- ground turmeric1/2 tsp
- warm water1/2 cup
- fresh green chilies2 med
Method
- 01
Rub the dried fish fillets evenly on all sides with the first measure of turmeric and salt, then set aside on a plate.
- 02
In a small high-speed blender or spice grinder, combine the black and yellow mustard seeds, the de-stemmed green chilies, the second measure of salt, and the ice cube.
Blend until it forms a smooth, creamy, pale-yellow paste. Set this aside.
- 03
Place a wide skillet or wok over medium-high heat and pour in the mustard oil.
Heat the oil until it reaches its smoking point—you should literally see wisps of white smoke. This is critical, as heating mustard oil to the smoking point breaks down its raw, bitter pungency and turns it sweet and nutty.
- 04
Carefully lower the turmeric-rubbed fish fillets into the smoking oil.
Sear for about 2 minutes per side, just until they develop a golden crust. They do not need to be cooked all the way through yet. Remove the fish to a plate, leaving the infused golden oil in the pan.
- 05
Lower the heat to medium and drop the kalonji into the hot oil.
Let them sizzle for 15 seconds until fragrant.
- 06
Pour your blended mustard paste into the skillet.
It will instantly sizzle. Stir constantly for 30 seconds, then add the warm water and the remaining turmeric. Whisk gently until the vibrant yellow sauce begins to bubble.
- 07
Slide the seared fish fillets back into the skillet, nestling them into the mustard sauce alongside the slit green chilies.
Turn the heat to low, cover the skillet, and simmer for 5 to 7 minutes, or until the fish flakes easily with a fork and the sauce has thickened to gently coat the back of a spoon.
- 08
Serve immediately alongside a generous mound of plain, steaming jasmine or basmati rice.
Notes
When mustard seeds are crushed, an enzyme called myrosinase activates and releases volatile heat.
Modern blenders spin so fast they generate friction, sending this enzyme into overdrive and turning the paste unbearably bitter. Grinding the seeds with salt and ice is a brilliant bit of kitchen chemistry: the salt alters the pH, and the ice keeps the blender blades cold, keeping the enzyme perfectly in check.
Chili doesn't contain FODMAPs, but capsaicin can still irritate a flared-up gut.
Scale the fresh chilies back, or omit the slit chilies in the simmer, if your system is currently in high-alert mode.
This is a richer dish—for some readers, the fat content of the mustard oil itself can be a trigger even when the FODMAP load is fine.
Pair with a lighter side, like steamed white rice, and a smaller portion of the fish if you're currently sensitive.
From Cook Low-FODMAP Indian.