Agedashi tofu is a classic Japanese appetizer of silken tofu that is lightly coated in potato starch, quickly deep-fried until golden, and then served in a warm, savory dashi-based broth. The contrast between the crisp, crackly exterior and the soft, almost custardy interior is what makes this dish so beloved. This recipe follows the traditional method used in many Japanese home kitchens, including the approach popularized by the blog Just One Cookbook, ensuring a genuinely crisp coating that stays crunchy even in the broth.
Ingredients
- 1 block (14–16 oz / 400–450 g) silken or soft tofu
- Potato starch or cornstarch, for coating (about 1/2 cup / 60 g)
- Vegetable oil, for deep-frying (about 2 cups / 500 ml)
- 1 cup (240 ml) dashi (see note)
- 2 tablespoons (30 ml) soy sauce
- 2 tablespoons (30 ml) mirin
- 1 teaspoon sugar
- 1–2 green onions, finely sliced
- Grated daikon radish (optional, for garnish)
- Shichimi togarashi (Japanese seven spice), for sprinkling
Note: For dashi, use 1 teaspoon dashi powder dissolved in 1 cup (240 ml) water, or make your own with kombu and katsuobushi. If you don’t have dashi, you can substitute with 1 cup water plus 1/2 teaspoon instant dashi granules, or use a light vegetable broth for a non-fish version.
Instructions
- Drain the tofu: Remove the tofu from its package and gently pat it dry with paper towels. Place it on a plate lined with a clean kitchen towel or several layers of paper towels. Put another towel on top and place a light weight (like a small cutting board) on it. Let it sit for 15–20 minutes to press out excess water. This step is crucial for a crisp coating.
- Make the broth: In a small saucepan, combine the dashi, soy sauce, mirin, and sugar. Bring to a gentle simmer over medium heat, stirring to dissolve the sugar. Taste and adjust seasoning if needed – it should be savory with a hint of sweetness. Keep warm over low heat while you prepare the tofu.
- Cut the tofu: Carefully cut the pressed tofu into 6–8 equal cubes, about 1.5 inches (4 cm) on each side. Pat the cubes dry again with paper towels – any moisture will cause the coating to become soggy.
- Coat the tofu: Place the potato starch (or cornstarch) in a shallow bowl. Gently roll each tofu cube in the starch, making sure all sides are evenly coated. Shake off any excess. It’s okay if the coating is not perfectly even; the starch will absorb moisture and form a crust.
- Heat the oil: In a deep, heavy-bottomed pot or skillet, heat about 1.5 inches (4 cm) of vegetable oil to 350°F (175°C). If you don’t have a thermometer, test by dropping a tiny bit of starch into the oil – it should sizzle immediately and float to the surface.
- Fry the tofu: Carefully slide the coated tofu cubes into the hot oil, a few at a time, without overcrowding. Fry for about 2–3 minutes per side, turning gently with a slotted spoon, until golden brown and crisp on all sides. The tofu should be heated through but still soft inside. Remove with a slotted spoon and drain on a wire rack or paper towels.
- Assemble and serve: Place the fried tofu cubes in individual serving bowls. Pour the warm broth over and around the tofu, being careful not to pour directly on top if you want to keep the coating crisp. Garnish with sliced green onions, grated daikon, and a sprinkle of shichimi togarashi. Serve immediately.
Tips
- Use silken tofu for the authentic texture: Silken (or soft) tofu is essential for that melt-in-your-mouth interior. Firm tofu will not give the same contrast and will be more like a fried tofu steak.
- Don’t skip the pressing step: Even a few minutes of pressing removes excess water, which is the number one reason coatings become soggy. Be gentle so you don’t break the tofu.
- Potato starch is key: Potato starch (katakuriko) gives the crispiest, lightest coating that stays crunchy longer. Cornstarch works in a pinch, but it will be slightly less crispy and may soften faster.
- Keep the oil at the right temperature: If the oil is too cool, the tofu absorbs oil and becomes greasy; if too hot, the coating burns before the tofu is warm. Use a thermometer or test with a small piece of starch.
Serving Suggestions
Agedashi tofu is traditionally served as an appetizer or side dish in Japanese cuisine. It pairs beautifully with a bowl of steamed rice and a simple green salad. For a full meal, serve it alongside grilled fish, teriyaki chicken, or a light miso soup. The warm broth is meant to be sipped, so provide small spoons or just enjoy it as part of the dish.
Variations
- Add mushrooms: Sauté sliced shiitake or enoki mushrooms and add them to the broth for extra umami.
- Make it spicy: Add a small amount of rayu (chili oil) or a pinch of shichimi togarashi to the broth for heat.
- Use a different starch: If you don’t have potato starch, try using cornstarch or a mix of cornstarch and all-purpose flour. The texture will be slightly different but still delicious.
- Vegetarian version: Use a kombu-based dashi (without katsuobushi) or a vegetable broth to make the dish completely vegetarian.
Storage and Reheating
Agedashi tofu is best eaten immediately, as the coating will soften over time. If you have leftovers, store the fried tofu and broth separately in airtight containers in the refrigerator for up to 2 days. To reheat, place the tofu on a baking sheet and warm in a 350°F (175°C) oven for 5–7 minutes until crisp. Reheat the broth in a small saucepan and pour over the tofu just before serving. Avoid microwaving the tofu, as it will become rubbery.
Frequently Asked Questions
Can I use firm tofu instead of silken? Yes, but the texture will be denser and less delicate. If you prefer a chewier bite, firm tofu works, but it’s not traditional. Just be sure to press it well and adjust cooking time slightly.
What is dashi and where can I find it? Dashi is a Japanese soup stock made from kombu (kelp) and katsuobushi (bonito flakes). It is available as instant granules or powder in Asian grocery stores and online. If you can’t find it, you can make a quick substitute by simmering a piece of kombu in water for 10 minutes, or use a mild vegetable broth.
Why did my coating fall off? The most common reasons are excess moisture on the tofu or not coating it thoroughly. Make sure to press and pat the tofu very dry before coating, and use a generous amount of starch. Also, do not move the tofu too much in the oil until the crust sets.
Can I shallow-fry instead of deep-fry? Yes, you can shallow-fry in about 1/2 inch (1 cm) of oil. The tofu will only be crisp on the top and bottom, but it will still taste good. Just be sure to flip gently.
Is agedashi tofu gluten-free? It can be, if you use gluten-free soy sauce (tamari) and ensure your dashi is gluten-free. The starch itself is gluten-free, so it’s easy to adapt.
Can I make the broth ahead of time? Absolutely. The broth can be made up to 3 days in advance and stored in the refrigerator. Reheat it gently before serving. The tofu is best fried fresh.
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Safety notes: safe minimum internal temperatures from USDA FSIS; raw and undercooked fish guidance from the U.S. FDA. Food safety notes
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