Bring 8 cups of water to a boil in a big pot. Wrap the fennel seeds, coriander seeds, cumin seeds, garlic, cardamom, cinnamon, and bay leaves into the center of the cheesecloth square and tie up the sides of the cheesecloth into a little package and tie a tight knot at the top, a bouquet garni. Drop the bouquet garni into the boiling water. Add the onion and tomato. When the water comes back up to a boil, add the lamb meat. Bring the mixture back to a boil, and then reduce the heat to medium-high and simmer for 20 minutes, or until the meat is tender.
In another large pot, heat 2 tablespoons vegetable oil over medium heat and saute the onion with the caraway seeds until soft. Stir in the drained rice and toast until the grains separate from each other, and the rice glistens with oil, about 5 minutes.
Remove the bouquet garni from the stock. Remove the lamb from the stock. Pour the stock over the rice and bring to boil. Reduce the heat to medium-low and simmer on low, covered, 15 minutes, or until the rice is cooked.
Place a bed of rice on each plate, top with a few pieces of lamb. Sprinkle the cashews and raisins over the dish and serve.
A viewer or guest of the show, who may not be a professional cook, provided this recipe. It has not been tested for home use.