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Bengali · Indian

Kosha mangsho

Non-vegetarian

কষা মাংস

Bengal's slow-fried mutton curry: goat marinated in yoghurt and mustard oil, then patiently 'koshano' — stirred and fried — with onions and spices until dark, thick and glossy.

Kosha mangsho is a Bengali curry from India, ready in about 2 hours 10 minutes and made with goat meat and mustard oil. It serves 4 and is rated intermediate to cook.

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Kosha mangsho: dark, slow-fried Bengali mutton served with rice, cucumber and tomato
Photo: Miansari66 / Wikimedia Commons · CC0-1.0
Prep
20 min
Cook
1 h 50 min
Total
2 h 10 min
Serves
4
Level
Intermediate
Calories
440

Plus at least 2 hours marinating.

Ingredients

4 servings

Marinade

For the curry

Method

  1. Step 1

    Mix the meat with the marinade ingredients and refrigerate for at least 2 hours, or overnight.

    • 5 min

    Food safety: Marinate raw meat in the fridge; wash hands and boards afterwards.

    Meat coated in a spiced marinade in a bowl
    How it looks · Photo: Ip Photographer on Pexels
  2. Step 2

    Heat the mustard oil (opens in a new tab) in a heavy pot until it just smokes, then lower the heat. Add the sugar (opens in a new tab) and let it caramelise, then add the bay leaves (opens in a new tab) and whole spices.

  3. Step 3

    Add the onions (opens in a new tab) and fry slowly until deep brown. If using potatoes (opens in a new tab), fry them briefly here and lift out.

    • 15 min
    • medium heat
    Onions frying golden in a pan
    How it looks · Photo: Magda Ehlers on Pexels
  4. Step 4

    Add the meat with its marinade, the chilli, cumin (opens in a new tab) and coriander. Cook uncovered, stirring and scraping often, until the liquid evaporates and the meat browns and the oil separates — this 'koshano' is the heart of the dish.

    • 30 min
    • medium heat
  5. Step 5

    Add the water (and potatoes (opens in a new tab)), cover and cook on a low heat until the meat is very tender, stirring now and then.

    • 55 min
    • low heat

    Food safety: Meat should be tender and piping hot throughout.

  6. Step 6

    Uncover and cook off the excess liquid until the gravy is thick and clinging. Stir in the garam masala (opens in a new tab) and ghee (opens in a new tab).

    • 8 min
    • medium heat
    A curry simmering in a pot
    How it looks · Photo: Bachir Mamud on Pexels

About this dish

Origin
West Bengal, India · Well documentedAlso popular in BangladeshMore food from India
Dish
Lunch · Dinner · Curries · Main courses
Cooking method
Marinated / cured, Braised, Slow-cooked
Taste
rich, spicy (chilli heat), savoury, aromatic / warmly spiced
Diet
No gluten ingredients · No nut ingredients · Low-carb · High-protein
All labelsNon-vegetarian · No gluten ingredients · Egg-free · No nut ingredients · Alcohol-free · Pork-free · Beef-free · Low-carb · High-protein · Calorie-conscious
Worked out from the ingredients. How labels work
Good for
Festive & celebration · Make-ahead
Techniques
Braising · Bhunao · Marinating · Curing

Allergens

  • Contains: Milkfrom yogurt, ghee
  • Contains: Mustardfrom mustard oil

Based on typical versions of these ingredients and not verified allergen-free. Brands differ and cross-contact happens, so always check labels. For severe allergies, follow your clinician’s advice.

Nutrition

440 kcal per serving

Estimated

1 serving ≈ 418 g · recipe makes 4

Where the energy comes from

  • Protein 38%
  • Carbohydrate 14%
  • Fat 48%
Nutrition per serving and per 100 g
NutrientPer servingPer 100 g*
Energy440 kcal105 kcal
Protein41.8 g10 g
Carbohydrate15.8 g3.8 g
Net carbohydrate12.8 g3.1 g
Sugars——
Added sugars1 g0.3 g
Fibre3 g0.7 g
Fat23.2 g5.6 g
Saturated fat4.2 g1 g
Trans fat——
Cholesterol112 mg27 mg
Sodium1054 mg252 mg
Salt equivalent2.6 g0.6 g
Vitamins & minerals per serving
Potassium
1001 mg
Calcium
133 mg
Iron
6.8 mg
Magnesium
—
Vitamin A (RAE)
26 µg
Vitamin C
9 mg
Vitamin D
—
Vitamin B12
2.3 µg
Folate (DFE)
30 µg

How these numbers were made

  • Calculated from USDA FoodData Central (SR Legacy) per-100 g values and the listed quantities.
  • *Per 100 g of combined raw ingredients; the cooked dish may weigh more or less.
  • Optional ingredients are not included: potato, ghee.
  • Garam masala: Curry powder (FDC 170924) used as a stand-in; both are ground blends of similar dried spices used in teaspoon amounts.
  • “—” means the value isn’t known for enough of the ingredients; it is never zero by default.
  • Values are estimates for guidance, not for medical dosing. U.S. Department of Agriculture, Agricultural Research Service. FoodData Central, 2019. fdc.nal.usda.gov.

Good to know

Tips

  • Patience during the frying stage gives the dark colour — there are no tomatoes in a classic kosha mangsho.

Common mistakes

  • Adding the water too early — the meat must be fried (koshano) until the oil separates and it turns dark.

Serve with

  • Serve with luchi, paratha or plain rice.

Storage

  • Keeps 3 days refrigerated; freezes for 3 months.

Reheating

  • Reheat gently with a splash of water.

Original editorial recipe · FriendsPantry editorial · Not yet independently reviewed · Added · Updated

Recipe DNA

How this dish is built

Built from the recipe’s own sections. Each band’s width is its share of the dish by weight. Choose a component to see what it does.

What the dish is built around

Main ingredient

Used in step 1

Masalas in this recipe

Make the masala first, then come back to finish the dish.

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