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1
Combine kombu and dried shiitake with 1 litre cold water. Refrigerate for 12 hours. Transfer the pot to the stove and warm gently to 65 °C — do not boil. Hold at 65 °C for 10 minutes, then remove and discard the kombu and shiitake. The dashi is ready when it carries a clean, deep savouriness with no bitterness: taste confirms the glutamate-guanylate synergy that replaces fish-based umami.
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2
Submerge the kōya-dofu blocks in a bowl of lukewarm water — not hot, as hot water tightens the protein and causes uneven rehydration. Leave undisturbed for 15–20 minutes. When the blocks have expanded fully and feel uniformly soft throughout, squeeze each gently to expel the soaking water. The blocks should feel like a light sponge under the hand: even compression with no hard core at centre.
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3
This is where the kōya-dofu dish lives or dies. Bring the shōjin dashi to a gentle simmer and season with light soy sauce and mirin. The simmering liquid must be tasted and judged correctly seasoned before the tofu enters the pot: kōya-dofu's porous, freeze-dried structure absorbs 3–5 times its volume in cooking liquid, amplifying whatever seasoning is present. Lay the squeezed blocks in the simmering dashi and cook over low heat for 20–25 minutes, turning once. Remove one block and slice through the centre: the interior should show uniform colour and moisture — a clean cross-section with no pale, unseasoned core.
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4
For the ganmodoki: crumble the pressed tofu into a bowl until it resembles coarse meal. Add the shredded burdock, shredded carrot, diced konnyaku, sesame seeds, and the egg or flax egg. Mix firmly until the mass coheres and can be shaped. Form into patties or rounds of roughly 60 g each. The mixture holds its shape under gentle pressure without crumbling.
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5
Heat neutral oil to 170 °C in a deep, heavy vessel. Lower the ganmodoki into the oil in batches; do not crowd. Fry until the exterior is golden — not dark brown. The surface should be crisp and set, the interior retaining moisture and a slight creaminess when broken open. Remove and drain on a rack. The correct colour is a warm, even amber: the nose detects a nutty-sesame aroma at the moment the exterior is done.
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6
Stir shiro miso into a portion of the warm (not boiling) dashi off the heat. Combine with light soy sauce to produce the dipping sauce. Portion the freshly fried ganmodoki onto plates. Place a mound of grated daikon beside each portion and add a sprig of kinome. Serve the dashi-seasoned soy dipping sauce alongside. The sauce should be clear and savoury; the daikon fresh and sharp against the warm, nutty ganmodoki.