Bok Choy Stir Fry

0 Trim the bok choy that may hold the pieces together, and cut them if they are over three inches long. Wash them well to remove any dirt and dry them thoroughly.
2 Stir-fry the garlic and fresh ginger for 30 seconds.
1 Heat the wok over high heat. Add the oil and heat until very hot. Add the garlic and ginger and stir-fry continuously for 30 seconds, taking care not to burn the garlic. Add the well-dried bok choy and stir-fry until the leaves begin to wilt. Pour the stock into the wok, add the sugar, and season with soy sauce.
4 Simmer covered for 2 minutes or until the stems and leaves are tender but still green.
5 Add the sesame oil and serve hot.