Beef chow fun, also known as gōn cháau ngàuh hó or gānchǎo níuhé in Chinese meaning "dry fried beef Shahe noodles", is a staple Cantonese dish, made from stir-frying beef, hor fun and bean sprouts. It is commonly found in yum cha restaurants in Guangdong, Hong Kong, and overseas, as well as in cha chaan tengs. Chow fun, or stir-fried hor fun noodles, is any number of different individual preparations.
The main ingredient of this dish is hor fun noodles, which is also known as shahe fen, originating in the town of Shahe in Guangzhou. It is a wide, flat noodle that is cut into shape. The most common methods of cooking hor fun are in soup or stir fried. Hor fun can be dry-fried (fried only with condiments such as soy sauce) or wet-fried (fried with a thickening sauce). Today, the dry-fried variant is much more common, to the extent that the method is usually not specified - "hor fun" on a restaurant menu would refer to dry-fried hor fun.
Sliced beef is marinated first. Then, the beef is seared in a wok. Other ingredients and the hor fun noodles are added, then combined with the beef and sauce. The bean sprouts are then stir-fried with the rest of the chow fun until they are tender and the dish is ready to serve.
An important factor in the making of this dish is wok hei (鑊氣). The cooking must be done over a high flame and the stirring must be done quickly. Not only must the hor fun be stirred quickly, it must not be handled too strongly or it will break into pieces. The amount of oil also needs to be controlled very well; if not, the excess oil or dry texture will ruin the dish.