Kankrar Jhal
A fiery, soul-warming Bengali crab curry where whole crabs are simmered in a robust mustard and tomato gravy. The sweetness of fresh crab meat meets the sharp heat of mustard paste and green chilies, creating a messy, finger-licking delicacy best enjoyed with a bowl of hot steamed rice.
For 4 servings
- prep · ~10 min
Clean and prepare the crabs.
1.Scrub the crabs under running water to remove any dirt.2.Lift the top shell and discard the gills and spongy material.3.Rinse the cavity well, then cut each crab in half.4.Gently crack the claws with a mallet or the back of a knife to allow flavors to penetrate. - prep · ~3 min
Make the mustard-poppy seed paste.
1.Drain the soaked mustard and poppy seeds, reserving the soaking water.2.Transfer to a grinder with 2 green chilies and a pinch of salt.3.Grind to a smooth, thick paste, adding a splash of the reserved water only if needed.TIPGrind mustard seeds with a little cool water to prevent bitterness from heat friction. - temper · ~2 min
Heat mustard oil to its smoking point.
Pour mustard oil into a heavy-bottomed pan and heat over high flame until it reaches its smoking point. Remove from heat briefly until the smoke subsides and the oil turns pale yellow.
TIPHeating mustard oil to its smoking point removes the raw, pungent kick and makes it mellow and sweet. - saute · ~5 min
Braise the onion-garlic base.
1.Reduce the heat to medium and add the finely chopped onion.2.Fry until the onion turns translucent and soft, about 3 minutes.3.Add the minced garlic and grated ginger, and sauté until the raw smell disappears. - saute · ~7 min
Cook the tomato and powdered spices.
1.Add the chopped tomato, turmeric powder, red chili powder, and cumin powder.2.Cook the mixture, stirring occasionally, until the tomato breaks down completely.3.Wait until the masala softens and the oil starts to separate at the edges. - mix · ~2 min
Fold in the mustard paste carefully.
1.Lower the heat completely before adding the mustard paste to prevent the gravy from turning bitter.2.Stir the paste into the cooked masala continuously for 1 minute to integrate it well.TIPNever boil a mustard-based gravy on high heat after the paste is added; it ruins the pungency. - simmer · ~18 min
Add crabs and simmer until cooked.
1.Add the prepared crab pieces and salt to the pan, carefully coating each piece with the masala.2.Pour in 1 cup of warm water and the sugar, giving the pan a gentle stir.3.Cover the pan and simmer on low heat for 15-18 minutes, gently shaking the pan halfway through.4.Check seasoning and consistency—the gravy should reduce but remain scoopable.TIPCrab cooks fairly quickly; overcooking makes the flesh rubbery and dry. - garnish · ~2 min
Finish with slit green chilies and fresh coriander.
Turn off the heat, scatter the remaining 2 slit green chilies and chopped coriander leaves on top. Cover and let it rest for 2 minutes before serving.
What to keep in mind.
7 tips from the recipe — small details that make a real difference to the final dish.
- 1Always clean crabs thoroughly, removing the gills and spongy material to avoid bitterness.
- 2Grind the mustard-poppy seed paste with a splash of cool water to prevent the mustard from turning bitter.
- 3Heat mustard oil until it smokes, then let it cool slightly; this tames its raw pungency and adds a nutty flavor.
- 4Add the mustard paste only after lowering the heat to prevent the gravy from becoming harsh and bitter.
- 5Simmer the crab gently on low heat for 15–18 minutes; overcooking makes the meat rubbery and dry.
- 6Shake the pan gently during simmering instead of stirring vigorously to keep the crab pieces intact.
- 7Let the finished curry rest for 2 minutes off the heat before serving so the flavors meld and the chilies infuse.
Adapt it for your goals.
Low-oil
Reduce mustard oil to 1.5 tbsp and use a non-stick pan; the curry will be lighter but still flavorful, ideal for those watching their fat intake.
high proteinHigh-protein
Add 200g of peeled shrimp or cubed fish along with the crab; this boosts protein and makes the curry more substantial for a hearty meal.
jainJain
Omit onion and garlic, and use asafoetida (hing) and extra ginger; this adapts the dish for Jain dietary restrictions while keeping the mustard heat.
veganVegan
Replace crab with firm tofu or jackfruit chunks and use vegetable broth; the mustard gravy clings beautifully to these substitutes for a plant-based version.
Why this is on our healthy list.
Rich in Lean Protein
Crab meat provides high-quality, low-fat protein, supporting muscle repair and satiety without heavy calories.
Packed with Anti-Inflammatory Spices
Turmeric, ginger, and mustard seeds contain compounds that may help reduce inflammation and support joint health.
Good Source of Omega-3s
Mustard oil and fresh crab naturally supply omega-3 fatty acids, which are beneficial for heart and brain function.
Low in Carbs, Keto-Friendly
This curry contains minimal carbohydrates, making it an excellent choice for low-carb or ketogenic meal plans when paired with a low-carb side.
Contains Essential Minerals
Crab is a natural source of selenium, zinc, and copper, which support immune function and thyroid health.
Frequently asked questions
Yes, thaw frozen crab in the refrigerator overnight, then pat it dry before cooking. Fresh crab gives the best flavor, but frozen works in a pinch.






-curry.webp)
.webp)