Kosha Mangsho

Name: Kosha Mangsho
Ingredients: 1 kg mutton, with bone 3-inch cubes (marrow and shoulder); 750 g onions, sliced fine; 1 large potato, cut in half; 1 tablespoon ginger, grated; 1 cup curds (natural yoghurt); 2 tablespoons jaggery; 3 tablespoons mustard oil; 1 tablespoon cumin powder; 1⁄2 tablespoon coriander powder; 1⁄2 teaspoon turmeric powder; 1⁄2 teaspoon chili powder; 2 bay leaves; 2 inches cinnamon sticks; 9 -10 cloves; 6 -7 cardamom pods; 15 -20 whole black peppercorns; 1 dried red chili; 1 black cardamom pod; 2 star anise