Heat the peanut oil in a wok. When it is hot, add the bok choy and stir-fry to coat with oil. Add the pieces of pork and stir-fry to heat through. Add the broth. Stir in the soy sauce, rice wine or sherry, and oyster sauce. When the sauce is hot, thicken it with the dissolved cornstarch and serve.
© 1981 Ken Hom. All rights reserved.