Grapefruit Ponzu Marinade or Mop

Ponzu is a Japanese mainstay that is served with light, clean foods, like sashimi. Traditional ponzu is a mixture of soy sauce, lemon juice, and mirin (sweet rice wine); this variation is a little brighter (from the grapefruit) and a little stronger (from the vodka). It is a perfect marinade for seafood of any type, or for white meats.