Ingredients:

  Amount  Measure       Ingredient -- Preparation Method
--------  ------------  --------------------------------
   3      lbs           lean boneless lamb
   3                    meaty lamb bones
   4      Tablespoons         light vegetable oil
     1/4  cub           cider vinegar
   3      Tablespoons         tamarind pulp
   2      Tablespoon          vegetable oil
   1                    big white onion
   6                    garlic cloves
   2      Tablespoons         fresh ginger root, chopped
     1/2  cup           vegetable oil
   3      cups          onion, thinly sliced
   1      tsp           ground cumin
   1      tsp           ground mustard
   3      tsps          turmeric
   1 1/2  tsps          red pepper
   3      tsps          paprika
   2 1/2  cups          hot water

Preparation:

1. Cut lamb into 3/4 inch cubes 2. Place lamb and the bones in a non-metallic bowl with the four tbsps of oil, the vinegar,tamarind pulp, and salt. Let it marinate at room temperature for eight hours or, refrigerated, for twenty four hours. 3. Put two tbsps of oil, plus the onion, garlic, and ginger, in the container of an electric blender or food processor and run the machine until a fine pasty puree is formed. 4. Heat the one-half cup of vegetable oil in a large enamel coated skillet over medium-high heat. Add the onions and saute until they are caramel brown, stirring constantly to prevent burning. 5. Add the puree. Reduce the heat and add ground cumin, ground mustard, turmeric, red pepper, and paprika. When the spices begin to sizzle and turn dark, in about 15 seconds, add the lamb and bones. Cook until slightly seared about ten minutes. 6. Add the water and bring to a boil, then lower the heat and simmer, partially covered, until the meat is very tender, about thirty minutes. 7. Pick out and discard bones. 8. Serve over rice.