Chahan (dish) ground beef and chicken broth, among others. Pre-cooked rice is typically used, and leftover rice is sometimes used. Oils such as canola oil, sesame oil and sunflower oil are used to fry the dish. The dish can be seasoned with soy sauce, oyster sauce, sesame oil, salt, pepper and katsuobushi, a dried and flaked tuna product. Shiso, an Asian culinary herb, may also be used to flavor "chahan". Nori, a dried edible seaweed product, can be used as a garnish. The use of a hot wok for frying and cooking "chahan" quickly can prevent the rice from sticking to the
Oyster sauce of MSG and non-MSG variants is similar as oyster sauce naturally contains large amounts of glutamate. In 19th century French and English cooking, "oyster sauce" referred to a variant of sauce blanche flavoured with oysters, using a base of milk and melted butter rather than purely reducing the oysters by cooking. The white sauce version was moistened with cream, whereas in brown oyster sauce, the cream was replaced with gravy. Common recipes using the sauce included "Steak and oyster sauce", documented as early as 1806, and "Cod and oyster sauce". This sauce was still being eaten in Australia in the