Find an asian specialty market and buy a bottle, seriously, none of the recipes I saw looked right. Got a bottle for four bucks (and a whole bunch of other stuff, last trip. I wonder if the place flooded when Iowa City was under water. Hmm)
And while you’re there, mirin, half decent soy sauce, and chili oil, are my favorite asian food ingredients. I use them a lot.
There is a terrific Korean-Japanese grocery store in Worcester. When I’m in that area, I try to stop by to get their Yaki-Soba noodles; yum. I got a bottle of Mirin and some Light Soy Sauce there and use them quite a bit. I have a recipe for a Cucumber Salad using rice wine vinegar that is scrumptious.