kosha mangsho

How to make Kosha Mangsho-Bengali Mutton Curry

Kosha Mangsho is a Bengali delicacy that is a must try!

How to make Kosha Mangsho-Bengali Mutton Curry

Difficulty:BeginnerPrep time: 15 minutesCook time:1 hour 30 minutesRest time:2 hours Servings:6 servings


Kosha Mangsho is a Bengali delicacy. Slow cooking gives melt in the mouth mutton pieces with a delicious gravy!


  • Garam Masala Powder

  • Marinade

  • Other ingredients 


  1. Use mutton with bone. The curry tastes better.
  2. Making Fresh Garam Masala

  3. In a grinder jar add cinnamon sticks, green cardamom and cloves.
  4. Grind to a fine powder and set aside
  5. Marination

  6. Add ginger garlic/green chilli paste, yogurt and 1/2 tsp. of the fresh garam masala powder.
  7. Add mustard oil
  8. Mix well and let this marinate for 2 hrs at least in the refrigerator 
  9. If you can marinate this overnight it’s going to taste even better 
  10. Making the curry

  11. A heavy bottomed pot is best for slowly cooking the mutton
  12. Add normal oil or mustard oil to the pot set on medium heat
  13. Add a 1 inch cinnamon stick, green cardamoms and 1 bay leaf to the pot
  14. Add sliced onions and 1/2 tsp. of sugar
  15. Stir fry the onions till slightly brown in color. This should take ~5 min
  16. Add turmeric powder, cumin powder, coriander powder and red chilli powder 
  17. Stir fry for another 30 sec
  18. Add the marinated mutton 
  19. Give it a stir and add salt to taste
  20. Stir fry the mutton well, turn down the heat  and place the lid on 
  21. Let the mutton cook for 10-15 min
  22. The mutton should ooze out water
  23. Give it a stir and place the lid on again
  24. Cook till all the liquid has evaporated
  25. Add 2 cups of hot water and place the lid on
  26. Cook the mutton for 45 min to 1 hr on low heat
  27. Check if the meat is tender. If it’s not you can add some more hot water and place the lid on for some more time
  28. Once the meat is tender, let the gravy simmer and let the gravy thicken to your liking
  29. Add the rest of the garam masala powder and add ghee
  30. Stir fry the mutton till it browns more
  31. Garnish with green chillies (optional)


  • Kosha Mangsho tastes amazing with Basanti Pulao, Mughlai Paratha or Luchi
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