Ingredients:

  Amount  Measure       Ingredient -- Preparation Method
--------  ------------  --------------------------------
   2      pounds        boneless lamb -- cubed
   4                    green peppers -- chopped
   1      tablespoon    fresh ginger -- minced
   2                    garlic cloves -- minced
   1      large         onion -- minced
   2      tablespoons   coriander seeds powder
   2      teaspoons     turmeric
   1      teaspoon      cumin seeds powder
   1      teaspoon      cinnamon powder
   1      teaspoon      mustard seeds powder
   4      cups          yogurt
   1                    onion -- chopped
   2      tablespoons   butter
                        salt to taste

Preparation:

1. Mix chiles, ginger, garlic, mined onion, spices and yogurt in a blender or food processor and process until well mixed. 2. Add this paste to the lamb pieces, mix well, cover and refrigerate for 3 hours. 3. Heat butter in a skillet and fry the chopped onion for few minutes. 4. Add the lamb and the yogurt marinade, mix all together, cover and simmer until meat is tender for 1 hour or so on a medium flame. 5. Add salt to taste and remove from heat when done.