P
Japanese · Japan
Agedashi Tofu — Deep-Fried Tofu in Dashi Broth (揚げ出し豆腐)
Agedashi tofu (揚げ出し豆腐) is one of Japanese cuisine's most technically demanding simple preparations — silken tofu (kinugoshi) dusted in potato starch (katakuriko) and deep-fried until a thin, almost transparent crust forms around the exterior, then immediately placed in a shallow pool of hot tentsuyu (dashi + soy + mirin) sauce. The interplay between the crispy fried exterior and the still-trembling-soft interior, with the sauce seeping under the crust and partially dissolving it over the 60 seconds before eating, produces a texture and flavour combination of extraordinary delicacy. It is a standard izakaya starter, a kaiseki side course, and a benchmark dish for evaluating a Japanese cook's control of oil temperature and timing.
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I
The Market List
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600 g
60 g
katakuriko (potato starch)
for dusting; do not substitute cornflour
Not yet stocked in British Columbia
For the tentsuyu
400 ml
dashi
kombu-and-katsuobushi, kept hot
Not yet stocked in British Columbia
60 ml
soy sauce
60 ml
mirin
Not yet stocked in British Columbia
For the garnish
60 g
20 g
5 g
katsuobushi (bonito flakes)
a few shavings per portion
Origin · United StatesNot yet stocked in British Columbia
2 g
1 litre
neutral oil
for deep-frying; maintained at 175–180°C
Not yet stocked in British Columbia
Each tap is counted, so the stockist sees the demand Provenance sends them.
II
The Method
1
Wrap the tofu blocks in a clean cloth or several layers of paper towel. Set a flat weight on top and leave to drain for 15–30 minutes. The preparation is ready to proceed when the cloth shows no further moisture and the surface of each block is dry to the touch, while the interior still yields and trembles under light pressure.
2
Combine the dashi, soy sauce, and mirin in a small saucepan. Bring to a gentle simmer and keep hot over low heat. The tentsuyu must be steaming when the tofu is placed into it; a cold or lukewarm sauce will dissolve the crust at the moment of contact and destroy the dish's defining texture.
From the canon — Tentsuyu (天つゆ) is the dipping sauce for tempura — a clean, light dashi-soy-mirin broth served hot alongside tempura, with finely grated daikon (大根おろし, daikon… Tentsuyu — Tempura Dipping Sauce (天つゆ) →
3
Heat the oil in a deep, heavy pan to 175–180°C. Verify the temperature with a thermometer; this is the dish's only unforgiving variable — too cool and the starch absorbs oil without crisping, too hot and the interior cooks through before the exterior sets.
4
Working one block at a time, dust the drained tofu in katakuriko just before it enters the oil — never in advance. Turn to coat all surfaces lightly and evenly, shaking off any excess. This is where the dish lives or dies: the starch coating must be applied at the last possible moment, and the oil temperature must hold at 175–180°C for the crust to form correctly. Lower the blocks into the oil without crowding and fry for 1–2 minutes, until the exterior transitions from dull white to a very pale, barely golden translucency. The crust should appear almost transparent, not golden-brown — the moment full colour develops, the tofu is over-fried.
From the canon — Katakuriko (片栗粉, 'potato starch') is the Japanese kitchen's primary thickening and coating starch — used for ankake sauce thickening, karaage (Japanese fried… Katakuriko — Potato Starch and Its Uses →
5
Lift the tofu from the oil, drain for no more than a few seconds on a rack, and place immediately into shallow bowls already holding the hot tentsuyu. Ladle additional tentsuyu around — not over — each block. The crust will begin its characteristic dissolution at once; the dish must reach the table within 60 seconds of plating. Set a mound of grated daikon and ginger on top of each block, drape a few shavings of katsuobushi across — they should flutter visibly in the warmth rising from the sauce — and finish with a pinch of aonori. Serve without delay.
III
Quality Hierarchy
01
Reserve — Kinugoshi tofu from a specialist maker pressing daily; hand-drawn kombu-katsuobushi dashi made to order; tentsuyu replaced with a near-transparent kombu dashi and finest soy — the tofu floats in a barely-visible sauce tasting of pure umami. Served within 30 seconds of plating.
02
Estate — High-quality packaged kinugoshi; dashi made from good dried kombu and katsuobushi steeped to order; katakuriko applied with care; oil temperature monitored by thermometer throughout. Garnished with freshly grated daikon, ginger, and katsuobushi shavings.
03
Market — Standard supermarket silken tofu, well-drained; dashi from a reliable granule stock; correct oil temperature and coating sequence observed. The dish remains true to its form if timing and temperature discipline are maintained.
04
House — Any silken (not firm) tofu, adequately dried; tentsuyu from dashi granules, soy, and mirin; neutral oil at temperature. The structural principle — thin fried starch crust, hot broth, immediate service — must still be honoured or the preparation loses its identity entirely.
IV
Sensory Tests
◇Touch. The drained tofu block is dry at the surface and leaves no moisture on the cloth, yet the interior still trembles and yields under the lightest finger pressure — both conditions must be present simultaneously before frying begins.
◇Sight. The frying crust passes from dull white to a very pale, barely golden translucency — almost transparent rather than coloured — in 1–2 minutes; this is the correct moment to remove from the oil.
◇Sight. The katsuobushi shavings placed on the finished dish flutter and curl in the heat rising from the hot tentsuyu — confirming the sauce is at the required serving temperature.
◇Sound. On entering the oil, the tofu emits a steady, moderate sizzle; a violent, spattering roar indicates residual moisture and insufficient draining.
◇Where it lives or dies. The dish lives or dies at the moment of dusting and frying: katakuriko applied to a properly dried block, in oil held precisely at 175–180°C, producing a barely translucent, almost-there crust — any deviation in moisture, timing, or temperature yields either violent spattering, a grease-soaked skin, or an overcooked interior.
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VI
What to Pour
The pairing
Sake
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