Agedashi Tofu — Crispy Fried Tofu in Dashi Broth

Crispy Outside, Silky Inside — The Magic of Agedashi Tofu

Agedashi tofu (揚げ出し豆腐) looks like restaurant food but is quietly easy to make at home — I make it when I want something a little special without much effort. Blocks of firm tofu are coated in potato starch, fried until golden and crisp, then served in a warm dashi broth. That contrast between the crunchy outside and the silky tofu inside is the whole point. Can’t find dashi locally? Here’s what to use instead.

It’s a classic izakaya dish, but it works just as well as a side at home. I make it as part of a Japanese meal — alongside rice, miso soup, and one other small dish.

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Ingredients (Serves 2)

• 1 block firm tofu (木綿豆腐 / momen tofu)
• 2 tablespoons potato starch (片栗粉 / katakuriko)
• Vegetable oil, for frying
• 50g grated daikon radish
• Green onions (細ねぎ), to finish

Dashi Broth

• 150ml water
• 1/3 teaspoon dashi granules (和風顆粒だし)
• 1 tablespoon mirin
• 1 tablespoon soy sauce

How to Make It

Step 1: Drain the Tofu

The most important step — and the one most people skip. Firm tofu still holds a lot of water, and if you don’t drain it properly, the coating won’t stick and the oil will splatter when you fry it.

Place the tofu in a drainer container or on a plate lined with paper towels. Leave it for at least 30 minutes. I use a plastic strainer container — the water drains away underneath and the tofu sits above it.

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Step 2: Cut the Tofu

Cut the block into four equal pieces. Keep them large — they hold together better when frying and look good in the bowl.

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Step 3: Coat in Potato Starch

Spread potato starch on a tray and coat each piece of tofu on all sides. Pat it on gently so it sticks. The starch is what gives agedashi tofu its characteristic light, slightly chewy crust — don’t substitute flour.

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Step 4: Fry Until Golden

Heat a generous amount of vegetable oil in a frying pan over medium-high heat. The oil should come about 1–2cm up the sides — this is shallow frying, not deep frying. When the oil is hot, add the tofu and fry without moving it until the bottom is golden and crispy. Then turn and fry the other sides.

This takes about 3–4 minutes per side. Don’t rush it — if you turn too early the coating will stick to the pan.

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Step 5: Drain the Oil

Transfer the fried tofu to a wire rack or paper towels to drain. This keeps the crust crispy while you prepare the broth.

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Step 6: Make the Dashi Broth

Combine the water, dashi granules, mirin, and soy sauce in a small saucepan. Bring to a simmer over medium heat, stirring until the dashi dissolves. Taste and adjust — it should be light and savory, not too salty.

Step 7: Serve

Place two pieces of tofu in each bowl. Pour the warm dashi broth around them. Top with grated daikon and sliced green onions. Serve immediately — the crust softens as it sits in the broth, so eat it while it’s still got some texture.

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Tips from My Kitchen

• Drain the tofu properly. 30 minutes minimum. If you skip this, the coating won’t stick and the oil will splatter.
• Use potato starch, not flour. Katakuriko gives the light, slightly chewy crust that defines agedashi tofu. Flour gives a thicker, heavier coating.
• Don’t move the tofu too early. Let it sit in the oil until it releases naturally from the pan. If it sticks, it’s not ready to turn.
• Serve right away. Agedashi tofu is at its best the moment it hits the broth. The crust will soften the longer it sits.
• Grated daikon is not optional. It cuts through the richness of the fried tofu and balances the dish. Don’t skip it.

What to Serve with Agedashi Tofu

Agedashi tofu works as a side dish in a Japanese meal:

• Rice — always
• Miso soup — a simple one works best so it doesn’t compete
• A small protein — grilled fish or chicken keeps the meal balanced

Agedashi tofu uses the same light, crispy starch coating as other Japanese fried dishes. If you enjoy this style, try my tori ten (Oita-style chicken tempura) or bamboo shoot tempura next — both use the same dashi-based dipping sauce. If you like crispy fried fish, my fish karaage is another good one.

Where to Buy Japanese Ingredients

If you can’t find these at a local Asian grocery store, here’s what I use:

• Potato starch (katakuriko) — essential for the crust, don’t substitute flour
• Dashi granules — quick and easy, works perfectly for the broth
• Mirin — adds sweetness and depth to the broth
• Soy sauce — use Japanese soy sauce for the right flavor

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Frequently Asked Questions

Can you make agedashi tofu with cornstarch?

Yes, though potato starch (katakuriko) gives a noticeably lighter, crisper shell that holds up better once the broth is poured over. Cornstarch works and is easier to find — the coating just turns slightly denser and softens a little faster.

Can you make agedashi tofu in an air fryer?

You can get close. Coat the tofu, spray it well with oil, and air fry at around 200°C (390°F) for 12–15 minutes, turning halfway. The texture is drier and less delicate than deep-fried, but it’s a reasonable weeknight compromise with far less oil.

What tofu should I use?

Firm or medium-firm. Silken tofu gives the silkiest interior but is very hard to handle and tends to break apart in the oil. Whichever you use, drain it properly — pressing out water is what stops the oil from spitting and lets the coating crisp.

Can you eat agedashi tofu cold?

It’s meant to be hot, and the contrast between the crisp shell and warm broth is the whole point. Cold, the coating goes soft and the broth tastes flat. Eat it straight away once the broth is poured.

Can you freeze agedashi tofu?

No. Frozen and thawed tofu develops a spongy, honeycombed texture completely unlike the silky interior this dish depends on. It’s a make-and-eat dish.