Ponzu dressing is a Japanese standard that combines salty soy with the sweetness of mirin and zing of citrus. Clean, elegant and guaranteed to brighten up anything you add it to. A great addition to raw oysters - especially for those who aren't so sure, but do like sushi. In desperate circumstances you can even add some wasabi and pickled ginger.
1 tbsppickled ginger, finely chopped (optional)
Stir soy, mirin and juices together. Add a few drops of sesame oil.
Drizzle over oysters.
Yuzu is a small Japanese citrus fruit that tastes something like lime and grapefruit mixed together. Unless you are lucky enough to find them fresh, your only option is bottled yuzu juice which is fantastic to have on hand. It can be hard to find, but a little goes a long way. If you can't track any down, you can substitute lime or lemon juice and still have a delicious result.