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1
Kuromame: Soak dried black soybeans overnight. Drain and place in a pot with fresh water, sugar, soy sauce, and a clean iron nail or iron skillet piece. Simmer on low heat, skimming regularly, until the beans are tender and the skins are intact — the liquid will have deepened to a lacquered black. The beans are done when they yield completely to gentle pressure but hold their shape without splitting.
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2
Kazunoko: Soak salted herring roe in cold water for several hours, changing the water, until the salt level is reduced but a clean brininess remains. Drain and pat dry. Season with dashi, soy sauce, and mirin to taste. The roe is ready when a clean, briny flavour is present without harshness — this is where the dish lives or dies, as over-soaking strips the roe of its character and under-soaking renders it inedibly salty.
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3
Datemaki: Blend hanpen fish cake to a smooth paste. Combine with beaten eggs, sugar, mirin, and soy sauce. Cook the mixture in a rectangular tamagoyaki pan over medium heat until just set across the surface but still slightly trembling at the centre. Turn out onto a bamboo rolling mat (makisu) and roll firmly into a cylinder while hot, securing with a band until cool. The roll is done when it holds its shape without unravelling and the cut face shows a clean spiral.
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4
Kohaku kamaboko: Slice red and white kamaboko boards into 1 cm rounds. No further cooking is required. Arrange alternating red and white slices in the first jubako layer (ichinojubako), placing them adjacent so the colour contrast is immediate to the eye.
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5
Ebi: Thread each shrimp onto a skewer to hold it straight during cooking. Boil or steam until pink and just opaque through the flesh. Remove skewers when cool — the shrimp will retain the curved posture that represents the bent back of an elder. The shrimp is done when the flesh is firm and opaque with no grey translucency at the centre.
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6
Renkon: Peel and slice lotus root into rounds. Blanch briefly in water acidulated with a little rice vinegar to preserve whiteness. Combine rice vinegar, sugar, and salt to make the pickling liquid and bring to a simmer until sugar dissolves. Add the lotus root slices and allow to cool in the liquid. The dish is ready when the rounds are slightly tender but retain a clean snap, and the holes are clearly visible through each slice.
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7
Kurikinton: Peel and boil satsuma-imo until completely tender. Pass through a sieve or mash very smooth. Combine with sugar, mirin, and enough of the candied chestnut syrup to produce a golden, paste-like consistency. Fold in whole candied chestnuts gently. The paste should be a deep amber-gold — the colour of gold coin — and hold a soft mound without slumping.
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8
Tazukuri: Toast dried gomame sardines in a dry pan over medium heat, stirring, until they are crisp and smell nutty rather than raw and fishy. In a separate pan, combine soy sauce, sugar, and mirin and simmer until syrupy. Add the toasted sardines and toss quickly to coat. Spread on a tray and separate before the glaze sets. The dish is done when the glaze is dry to the touch and each sardine is distinct, not clumped.
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9
Kohaku namasu: Salt julienned daikon and carrot separately, rest briefly, then squeeze firmly to remove liquid. Combine rice vinegar, sugar, and salt into a dressing and pour over the vegetables. Refrigerate for at least two to three days before serving — the flavours meld and the vinegar sharpness rounds. The namasu is ready when the daikon and carrot have taken on the dressing evenly and the sharp initial vinegar edge has softened to a clean, assertive acidity.
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10
Assembly of the jubako: Arrange components in their traditional layers at ambient temperature — never directly from refrigeration, as cold suppresses the carefully balanced sweet-salty seasoning of each dish. First layer (ichinojubako): kamaboko, datemaki, kazunoko. Second layer (ninojubako): ebi and grilled protein items. Third layer (sannojubako): kuromame, kurikinton, tazukuri, renkon, kohaku namasu. Place contrasting colours adjacent, group small items for visual density, and leave deliberate space in each layer. Before eating, name the meaning of each dish to those at the table — this act of narration is part of the New Year ritual itself. The jubako is complete when it reads as coherent in colour and intention, not merely full.