If you're lucky enough to have an Asian market nearby, the endless choices of miso can be a bit intimidating, especially if the labels are only in Japanese. White miso, with its pale mustard color, is very mild and well suited for this dressing. Red and brown misos are darker and more flavorful, but they are just fine too. All health food stores and many supermarkets now carry miso. Serve this silky dressing with any type of salad green, avocados, melon, tomatoes, tofu, chilled seafood, and poached or grilled fish or chicken.