Black Cod or Mackerel Fillets in Miso Sauce
Black cod, a Pacific fish also known as sable, is treasured in Japan (and at elite Japanese restaurants here) for its richness and slightly smoky flavor. With miso it is astonishingly delicious. (Mackerel is not the same but still very good.) Use white (it’s actually beige) miso if you can find it. As is common before cooking many types of fish in Japan, this is salted to firm up the flesh; you can skip this step if you prefer. This is not a super-saucy dish, but well-made short-grain rice (page 507) is still a good accompaniment, as would be any salad.