Slow Cooked Lamb Curry

Name: Slow Cooked Lamb Curry
Ingredients: 4 tablespoons oil such as mustard or grape seed oil; 1 teaspoon turmeric; 1 teaspoon red cayenne pepper; 3 medium sized red onions diced (about 1/2 pound); 1 teaspoon sugar; 2 to 3 cloves garlic minced; 1 and 1/2 tablespoon ginger grated; 2 and 1/2 pounds of cubed leg of lamb; A few pieces lamb on the bone optional, but helps with the flavor; 1 and 1/2 teaspoon salt or to taste; 1 teaspoon freshly ground black pepper; 2 tablespoons yogurt; 2 to 3 pods of green cardamom gently bruised; 2 to 3 bay leaves; 8 to 10 cloves; 1 large 3-inch stick cinnamon, broken into smaller pieces; 10 to 15 fingerling potatoes note, if you are using organic potatoes, you can leave the skin on; 2 medium sized carrots peeled and cut into 2 inch pieces; 1 tablespoon clarified butter ghee; 1 small red onion thinly sliced; Optional Garnish; Sliced Red Onions; Chopped cilantro