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Agedashi Tofu Delicate Frying and Kuzu Sauce

Agedashi tofu (揚げ出し豆腐 — 'fried and dashi-served tofu') is a delicate preparation that sits at the intersection of two Japanese techniques: agedashi (the method of coating a ingredient in potato starch, frying lightly, then serving immediately in hot dashi that thickens to a clinging sauce) and the specific challenge of frying silken tofu. The preparation is deceptively simple and technically demanding: silken or medium-firm tofu is cut, dried thoroughly (essential — surface moisture causes oil spatter and prevents crust formation), dusted in katakuriko (potato starch), and fried at 180°C for 90–120 seconds per side until the exterior is golden and crisp while the interior remains completely soft. The critical moment: the tofu is transferred directly from the fryer to the serving bowl, and the dashi-mirin-soy sauce (thinned with kuzu or katakuriko to slight viscosity) is poured over the hot tofu. The sauce clings to the crisp starch coating rather than penetrating — the eating experience is a simultaneous encounter of crisp exterior, soft interior, and clinging umami sauce. Toppings: finely grated daikon oroshi, grated ginger, sliced negi, katsuobushi.

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ServesFour portions
Sourced3of 11 in BC
Cook
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I

The Market List

The benchmark for each ingredient, and who stocks it near you. Tap a stockist to go straight to the product.

600 g
silken or medium-firm tofu
cut into four equal blocks, pressed between paper towels under a 500 g weight for 20 minutes, then patted dry again
Origin · JapanT Amano Trading · Vancouver →
60 g
katakuriko (potato starch)
for dusting — coat minimally and shake off all excess
Not yet stocked in British Columbia
1 litre
neutral frying oil
for deep-frying at 180 °C
Not yet stocked in British Columbia
For the kuzu sauce
200 ml
ichiban dashi
Not yet stocked in British Columbia
30 ml
mirin
2 tbsp
Not yet stocked in British Columbia
30 ml
5 g
katakuriko (potato starch)
1 tsp, dissolved in a small amount of cold water; added last
Not yet stocked in British Columbia
Toppings
60 g
daikon oroshi
finely grated and lightly pressed
Not yet stocked in British Columbia
20 g
fresh ginger
finely grated
Origin · New ZealandPurely Artisan Foods · San Diego →
20 g
negi (Japanese leek or spring onion)
finely sliced
Not yet stocked in British Columbia
4 g
katsuobushi (bonito flakes)
a small pinch per portion
Origin · United StatesNot yet stocked in British Columbia

Each tap is counted, so the stockist sees the demand Provenance sends them.

II

The Method

1
Press each tofu block between two layers of paper towel and set a 500 g weight on top. Leave for 20 minutes. Remove the weight, discard the paper, and pat every surface dry again. Any remaining surface moisture will prevent starch adhesion and cause violent oil spatter. The surface must be visibly matte and completely dry to the touch.
2
Heat the frying oil in a deep, heavy pan to 180 °C. While the oil comes to temperature, prepare the sauce: combine the ichiban dashi, mirin, and soy sauce in a small saucepan and bring to a simmer. Stir in the katakuriko slurry last, stir once to distribute, and keep the sauce hot over the lowest possible heat. It should coat the back of a spoon with slight viscosity — thin enough to pour, thick enough to cling.
From the canon — The foundational liquid of Japanese cooking — a clear, pale gold broth of extraordinary delicacy made from kombu and katsuobushi in under five minutes. Ichiban Dashi (Primary Dashi) →
3
Dust each tofu block in katakuriko immediately before frying — the coating should be the thinnest possible film. Shake off all excess. This is where the dish lives or dies: a coating that is too thick becomes doughy and bready; the correct coating is barely visible, a translucent skin of starch. Lower the blocks gently into the oil and fry 90–120 seconds per side. The exterior is done when it is pale gold and just firm to the eye — the tofu does not need to cook through, only to set the crust.
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 →
4
Lift each block from the oil and drain for no more than a few seconds. Transfer directly to individual deep serving bowls without delay. The crisp exterior will begin to absorb sauce and soften within 3 minutes; service must be immediate.
5
Pour the hot sauce around and over each tofu block. The sauce should visibly cling to the starch coating rather than pooling thinly at the base of the bowl. Top each portion with daikon oroshi, a small mound of grated ginger, sliced negi, and katsuobushi. Serve at once.
III

Quality Hierarchy

01
Reserve — House-made ichiban dashi from first-grade Rishiri or Rausu kombu and hon-karebushi katsuobushi; freshly made silken tofu from a specialist tofu maker; freshly grated wasabi-quality daikon and hand-pressed ginger. The sauce is a true kuzu-thickened broth at this level.
02
Estate — Good-quality packaged silken tofu; ichiban dashi made the same day from quality dried kombu and katsuobushi; katakuriko as thickener; daikon grated to order.
03
Market — Refrigerated silken tofu from a Japanese or Korean grocer; dashi made from a reliable dashi packet (not powder); katakuriko; pre-grated daikon pressed dry before use.
04
House — Firm silken tofu from a supermarket; dashi stock from a low-sodium dashi powder; potato starch; pre-grated daikon, bottled ginger. The crust and sauce technique remain as written — the result is honest if less refined.
IV

Sensory Tests

◇Touch. The dried tofu surface is visibly matte and completely dry — no tacky or damp patches remain under the fingertip.
◇Sight. The starch coating is a translucent film only — the tofu surface is still visible through it; excess has been shaken off.
◇Sight. After 90–120 seconds per side in oil at 180 °C, the exterior is pale gold and just firm in appearance — not deeply coloured, not raw-white.
◇Sight. The finished sauce clings to the back of a spoon in a thin, even film; it does not pour off cleanly like thin stock.
◇Sight. When poured over the fried tofu in the bowl, the sauce coats the starch crust and pools only slightly at the base — it does not run off entirely.
◇Where it lives or dies. The dish lives or dies on the dryness of the tofu surface and the thinness of the starch coating: any surface moisture prevents adhesion and the crust does not form; any excess starch produces a doughy, bready shell rather than the translucent, clinging skin that is the signature of the preparation.
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The dishes this one teaches you, across the cuisines — on every recipe.
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VI

What to Pour

The pairing
Kiku-Masamune Kimoto Junmai
Kiku-Masamune Sake Brewing · Nada
Not yet stocked in British Columbia
Sake
From British Columbia
Fort Berens Riesling
Fort Berens Estate Winery · Lillooet
Not yet stocked in British Columbia
Wine
Without alcohol
GT's Synergy Organic Kombucha — Gingerade
Not yet stocked in British Columbia
Non-alcoholic

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The whole pairing
Pillar VII
Origin and lineage are part of membership.
Where the dish comes from and how it came to be — on every recipe.
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Sourced through Provenance

The hands behind the plate.

T Amano Trading
Vancouver · silken or medium-firm tofu
→
Purely Artisan Foods
San Diego · soy sauce, fresh ginger
→
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