For this recipe, the use of traditional Chinese five-spice powder is the key to the flavor. The five spices in this mixture are cinnamon, clove, fennel seed, anise and Szechuan peppercorns. You should be able to find them at your local grocery store on the spice aisle or in the ethnic food section. Sirloin is the beef of choice for this recipe, cooked stir-fry-style with carrots, onion, and red and yellow peppers. The ever present soy sauce with a little red pepper and brown sugar make this a sweet and spicy treat to serve your family over white or brown rice.