Kosha Mangsho (Bengali Mutton)কোষা মাংস
⏱ Prep 20m🍳 Cook 90m🍽 Serves 4🌿 Non-veg
Video: Sanjeev Kapoor Khazana (YouTube)
Kosha Mangsho is the centerpiece of the Bengali Sunday table — slow-braised mutton cooked until the masala is almost dry and deeply caramelized onto every piece. The word kosha describes the technique: patient frying that drives off all moisture until the meat is glossy, perfumed with mustard oil and whole spices. Across Bengal and the Bangladeshi diaspora, this dish marks weddings, Durga Puja feasts, and homecomings.
📍 Make it in Plano
This recipe is the same everywhere — but where you buy the ingredients and eat the dish is local to you.
Finding Desi spots near Plano…
Ingredients
- ▪Mutton (bone-in, curry-cut pieces)800 g
- ▪Onions, thinly sliced3 large
- ▪Yogurt (full-fat)½ cup
- ▪Mustard oil (সরষের তেল)3 tbsp
- ▪Ginger paste (আদাবাটা)1½ tbsp
- ▪Garlic paste (রসুনবাটা)1 tbsp
- ▪Turmeric powder (হলুদ)1 tsp
- ▪Kashmiri red chili powder2 tsp
- ▪Coriander powder1½ tsp
- ▪Cumin powder1 tsp
- For the tempering
- ▪Bay leaves2
- ▪Green cardamom (এলাচ)4 pods
- ▪Cloves (লবঙ্গ)4
- ▪Cinnamon stick (দারচিনি)1-inch piece
- ▪Bengali garam masala (গরম মশলা — ground cinnamon, cardamom, cloves)½ tsp
- ▪Saltto taste
🌍 Cooking abroad? Substitutions
- Mustard oil gives the authentic smoky-pungent base; if unavailable in your area, use neutral vegetable oil and bloom 1 tsp mustard seeds in it first. Most South Asian grocers in North America (Patel Brothers, India Grocers, Arz Fine Foods) stock Dhara or Patanjali mustard oil.
- Bengali garam masala (typically cinnamon, cardamom, cloves in a 2:1:1 ratio) can be substituted with standard Indian garam masala — or freshly grind a small piece of cinnamon with 2 cardamom pods and 2 cloves just before finishing the dish.
- Bone-in lamb shoulder (readily available at halal butchers across North America) is an excellent substitute for goat; reduce the covered cooking time to 35–40 minutes as lamb is more tender.
Method
- 1Marinate: Combine mutton with yogurt, half the ginger-garlic paste, ½ tsp turmeric, and 1 tsp red chili powder. Mix well and marinate for at least 2 hours (overnight in the refrigerator for best results).
- 2Heat mustard oil in a heavy-bottomed kadai or Dutch oven over high heat until it just begins to smoke; reduce to medium. Add bay leaves, cardamom, cloves, and cinnamon — fry 30 seconds until fragrant.
- 3Add sliced onions and cook on medium-low, stirring occasionally, for 25–30 minutes until deep golden-brown. This slow caramelization (bhuno) is the backbone of Kosha Mangsho — do not rush it.
- 4Add the remaining ginger-garlic paste and stir-fry for 2 minutes. Add the remaining red chili powder, coriander powder, and cumin powder; splash 2 tbsp of water and fry the masala on medium heat for 4–5 minutes until the oil separates at the edges.
- 5Add the marinated mutton and raise heat to high. Stir and sear the pieces, turning constantly, for 8–10 minutes until the marinade liquid fully evaporates and the masala is coating the meat.
- 6Reduce heat to low, add ½ cup warm water, cover, and cook for 45–55 minutes — stirring every 10–12 minutes — until the mutton is fully tender when pierced.
- 7Uncover, raise heat to medium-high, and kosha: stir-fry the meat, scraping the bottom, until every trace of liquid is absorbed and the masala clings dry to each piece. Some charred masala on the base is correct and desirable.
- 8Sprinkle Bengali garam masala, adjust salt, and serve immediately with luchi, steamed rice, or paratha.
A Desi.Net original recipe · part of our Indian Cuisine library. Confirm details and adjust to taste.