Broiled or Grilled Miso-Marinated Salmon with Spinach Sauce

Because miso-marinated fish is strongly flavored by the marinade, the cooked fish is traditionally served without any sauce. In this preparation, however, I break with convention by serving miso-marinated salmon with a bright green spinach sauce underneath. To adjust the flavor balance, the fish is marinated for a shorter time than is traditional. For a more authentic presentation, try the preceding recipe.

This preparation requires two tightly woven, thin cotton cloths, about 12 in