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
{"Kinmedai nitsuke requires high heat and short cooking time — the combination of high fat content and tender flesh means the fish cooks faster than leaner species; 8–10 minutes is the professional standard for a 200g serving piece","The scales of kinmedai are large and thin enough to become crispy when fried at high temperature (180°C for 3–4 minutes) — this uroko age preparation produces an elegant crispy texture that becomes a separate dish component","Kinmedai's freshness is highly perishable — the large golden eyes are the primary freshness indicator; bright, convex eyes indicate very fresh fish; sunken, cloudy eyes indicate declining freshness","The braising liquid for nitsuke should be a flavour-forward blend: for 200g fish, approximately 50ml sake, 30ml mirin, 25ml soy sauce, 1 teaspoon sugar brought to boil before adding the fish — the liquid must be boiling when the fish enters","Nodoguro from Kanazawa (Sea of Japan coast) is so fat-rich that it is often served as a simple salt-grill (shioyaki) to avoid masking the extraordinary natural fat with seasoning — the fat melts during grilling and bastes the fish from within"}
{"Score the kinmedai skin deeply (3 cuts to the bone) before nitsuke — this allows the braising liquid to penetrate the flesh rapidly and reduces cooking time while improving sauce absorption","Baste kinmedai with the braising liquid every 2–3 minutes during nitsuke — the lacquering effect comes from the repeated caramelisation of sugars on the skin surface; neglecting this step produces a dull, flat-coloured finish","For kinmedai himono: salt the fish (1 teaspoon per 200g, distributed on both sides), then hang or set on a rack in a cool, well-ventilated location overnight (8–10 hours) before grilling — the overnight drying concentrates flavour and produces the characteristic dry-then-moist texture of premium himono","Kinmedai collar (kabutoyaki) is among the most flavourful parts of the fish — the collar contains fat deposits from the pectoral fin area; salt and grill over binchotan for 12–15 minutes for extraordinary fat rendering","When purchasing kinmedai outside Japan, look for Madeira Islands, Azores, or New Zealand-caught alfonsino as the highest quality available alternatives — the fish is the same species and quality is comparable when handled correctly"}
{"Cooking kinmedai nitsuke for too long — the high fat content and tender texture mean the fish falls apart after 10–12 minutes; check texture at 8 minutes and stop cooking when a skewer passes through with slight resistance","Adding the kinmedai to cold braising liquid — the fish must enter boiling liquid to immediately set the surface proteins and prevent the flesh from breaking apart during the braise","Ignoring the scales of kinmedai — the large, colourful scales are an ingredient, not waste; request the fishmonger to leave scales on if preparing uroko age","Serving kinmedai sashimi from a fish more than 24 hours from catch — while safe, the quality of kinmedai sashimi is dramatically superior within 12 hours; the fat texture and flavour both decline meaningfully with time","Overcooking nodoguro on the grill — the internal fat content means nodoguro continues cooking from residual heat after removal from the heat source; remove when the flesh near the spine still shows slight translucency"}
Japanese Cooking: A Simple Art — Shizuo Tsuji