When I'm lucky enough to get to an Asian market (the closest is nearly 20 miles away), I steer my cart right to the produce aisles to stock up on things the grocery store in my village doesn't carry: choy sum, lemongrass, fresh bean sprouts, and my favorite baby bok choy, a miniature Chinese cabbage. You can make this stir-fry with grown-up bok choy, by trimming the head through the root into smaller wedges, but if you can find the babies, you'll love the sweeter flavor and more delicate texture. Choose heads with either white or a pale green stalks; the taste is the same, so buy whichever color coordinates with the rest of your dinner. This recipe utilizes one of my lazy-girl techniques for wok cooking: pan steaming, the same method used to make potstickers. Rather than blanching the bok choy in a separate pot, I stir-fry in the wok, then toss in a small amount of water and slap a lid on to catch the steam. The tender baby bok choy heads cook quickly this way, while absorbing the flavors of the sauce -- and I only have to wash one pan.