Japan's iconic glazed grilled eel — split, steamed, then lacquered with sweet-savory tare and grilled until smoky.
Unagi no kabayaki is one of Japan's most luxurious traditional dishes — freshwater eel butterflied, steamed to tenderness, then repeatedly brushed with tare (a sweet-savory glaze of soy sauce, mirin, sake, and sugar) and grilled over charcoal until the surface lacquers and the fat renders. Served over a bed of plain steamed rice as unaju (in a lacquered box) or unadon (in a bowl), it is the dish Japanese people eat on the summer solstice, doyo-no-ushi-no-hi, to combat heat fatigue. Specialist unagi-ya shops have been making it for 200+ years; their tare pots have never been emptied, only topped up — the depth of flavor compounds over generations. At home, you'll use pre-cooked frozen unagi from an Asian grocery, but the at-home version is still extraordinary.
Serves 4
Combine soy sauce, mirin, sake, sugar, and honey in a small saucepan. Bring to a gentle boil, then reduce heat. Simmer 12-15 minutes until reduced by about a third and slightly syrupy. It should coat the back of a spoon thinly. Reserve half for the table; the other half is for basting.
Even pre-cooked frozen unagi benefits from a brief steam to soften before glazing. Place fillets in a steamer over simmering water for 4 minutes. The eel should look plump and tender.
Transfer unagi to a foil-lined tray. Brush with a thick coat of the basting tare.
Broil under a hot grill (or in a 240°C oven on top rack) for 90 seconds — the tare bubbles and starts to lacquer.
Pull out, brush with another thick coat of tare. Broil 60 more seconds. Repeat the brush-and-broil cycle a third time. The unagi should have a deep mahogany sheen and slightly caramelized edges.
Divide hot rice among 4 deep bowls. Slice each unagi fillet crosswise into 4-5 pieces with kitchen shears. Lay the slices across the rice.
Drizzle the reserved table tare generously over the eel and rice. Sprinkle with sansho pepper, sesame seeds, and shiso.
Eat while hot — the tare glazes the rice as you mix, the eel falls apart, the sansho lights up the back of your throat with its citrus-tingle.
The steam step before glazing rehydrates the eel — crucial for frozen pre-cooked product.
Brush tare in thin coats and broil between — three rounds builds the lacquer.
Sansho pepper is the traditional finish — its citrus-numbing tingle is what makes unagi taste authentically Japanese.
Hitsumabushi (Nagoya-style): served in a wooden tub. Eat the first portion plain, the second with wasabi and scallion, the third in dashi tea (ochazuke).
Una-Tama: top with a soft-boiled egg in the center of the bowl.
Anago version: use sea eel (anago) — same technique, lighter result.
Glazed unagi keeps refrigerated 2 days. Reheat briefly in a 200°C oven or pan to re-lacquer. The tare keeps in a jar for months.
Kabayaki style appears in Japanese cookbooks from the 17th century. The summer solstice tradition was created in the 1700s by Hiraga Gennai, who advised an unagi seller to market eel as a heat-fatigue remedy. The 250-year-old Edo-period restaurant Nodaiwa in Tokyo still tops up its original tare pot daily.
Yes but it's a project — raw eel requires butchering, butterflying, steaming, and grilling. The frozen pre-cooked unagi at Asian groceries is the practical home option.
Unaju is served in a lacquered wooden box; unadon in a ceramic bowl. Same dish, different presentation. Unaju is the more formal version.
Per serving (380g / 13.4 oz) · 4 servings total
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