Trim both ends of green beans.

Cut green beans into 2 inch lengths, wash, and spin dry or dry with paper towels.

Heat the wok or a heavy frying pan over high heat for 1-2 minutes, until it’s too hot to hold your hand over it.

Add the oil and heat about 30 seconds more, then add the garlic and onion and cook for 20-30 seconds, stirring the whole time.

Add beans and salt and cook about 2 minutes, stirring several times.

Then add water, cover wok, and let beans steam for 5 minutes.

Uncover the pan and add oyster sauce, sugar. Then cook 2 minutes more, stirring so all the beans are uniformly covered with the sauce.

Beans should still be slightly crisp when they’re done.

Serve hot.