Japanese Kinmedai Alfonsino and Deep Sea Fish Preparations

Izu Peninsula (Shimoda, Inatori) and Pacific waters — kinmedai fishing traditional in Shizuoka and Chiba fishing ports; nodoguro associated with Kanazawa, Niigata, and Sea of Japan coast ports

Kinmedai (金目鯛, Beryx splendens — golden-eye seabream or alfonsino) is one of Japan's most prized deep-sea fish — a striking crimson-orange-scaled fish with enormous golden eyes (the 'golden eye' of its Japanese name) inhabiting depths of 200–800 metres in the Pacific and Atlantic oceans. In Japan, kinmedai is most closely associated with Shimoda and Inatori on the Izu Peninsula (Shizuoka Prefecture), where the fishing boats operating in deep Sagami Bay waters bring the fish to port with a freshness impossible in more distant fisheries. The flesh of kinmedai is remarkably high in fat (among the highest of all Japanese food fish) with a rich, savoury-sweet flavour and extremely tender texture — qualities that make it exceptional for simmering (nimono) particularly kinmedai no nitsuke (煮付け), the definitive kinmedai preparation where the fish is braised in soy, sake, mirin, and sugar for only 8–10 minutes — brief enough to preserve moisture while allowing the sauce to caramelise on the skin. The large scales of kinmedai are also edible and a delicacy when deep-fried to crispiness (uroko age) or grilled with salt to create a crackling texture. Kinmedai is also prepared as himono (dried and wind-dried overnight to concentrate flavour before grilling), sashimi (at peak freshness), and as yakimono (salt-grilled). Nodoguro (アカムツ, rosy sea bass) is a related deep-sea delicacy associated with Kanazawa (Niigata and Ishikawa coasts) — so rich in fat it is called 'the black throat' for its dark-pigmented gullet.

Rich, fatty, sweet oceanic flavour with remarkable tenderness; nitsuke preparation adds caramelised soy-mirin lacquer; outstanding raw at peak freshness with clean sweet fat character