Wash, and cut bok choy in half, lengthwise, check for dirt in the middle, and dry on paper towel. Get a wok to sizzle add a little peanut oil, and stir fry the garlic , quickly . Add the stock, oyster sauce and hab powder, then place the bok choy in this, large end down, let green leaves stick out of the sauce, and turn off heat, and cover wok....That's it..Do Not Over Cook! Gently remove bok choy to a platter, with tongs, keep warm, and reduce the stock, then drizzle it over the veggies...serve with whatever else you are having, like that chicken curry, and fried rice, plain rice, whatever.