Tempura (Crispy Fried Seafood and Vegetables)

Light, crisp tempura is one of Japan’s most recognisable fried dishes, valued for a batter that stays delicate rather than heavy. Prawns and vegetables are coated in a cold, lightly mixed flour, cornflour and egg batter, then fried quickly so the outside turns pale golden while the filling stays tender. Aubergine, sweet potato and broccoli bring different textures and sweetness, while the soy, mirin, dashi and ginger dipping sauce adds savoury depth without overwhelming the crunch. Best served immediately, it works well as a starter, sharing platter or part of a larger Japanese-style meal.
Cuisine style Japanese tempura
Flavor profile Light • Savoury • Umami-rich
Techniques Cold batter mixing • Deep-frying
Key equipment Large pot • Thermometer • Sieve-strainer
Time commitment Under 1 hour

Why this recipe works

  • Delicate crispness: A loose batter made with plain flour, cornflour and egg fries quickly, creating a light shell rather than a heavy crust.
  • Classic tempura handling: Keeping the batter cold and only briefly mixed limits gluten development, helping the coating stay fine, airy and crisp.
  • Savoury dipping sauce: Dashi, soy sauce, mirin and ginger add umami, gentle sweetness and warmth without overwhelming the seafood or vegetables.

Get the most out of this recipe

Timing notes

  • Serve straight away: Tempura is at its best immediately after frying, before steam softens the coating.
  • Prep before mixing the batter: Cut and dry the prawns and vegetables first, then make the batter just before frying for the lightest result.

Authenticity notes

  • Pale golden is correct: Tempura is usually fried to a light golden finish; the aim is delicacy and crispness, not a dark, crunchy crust.
  • Dashi-based dipping sauce: A soy, mirin and dashi sauce is a classic partner, adding savoury depth while keeping the fried pieces the focus.

Common mistakes

  • Letting the oil temperature drift: Keep the oil close to 170°C (340°F); cooler oil can make the batter greasy, while hotter oil may brown the coating before the vegetables are tender.
  • Frying too much at once: Work in small batches so the oil recovers quickly and the pieces fry cleanly rather than steaming together.
  • Not checking the prawns: The prawns should be opaque all the way through with no grey centre, especially when serving children, older adults or other vulnerable groups.

Ingredient notes

  • Dry ingredients matter: Pat the prawns and vegetables dry before coating so the batter clings evenly instead of sliding off.
  • Slice dense vegetables thinly: Sweet potato needs thin rounds so it cooks through within the short frying time and stays tender inside.
  • Dashi sets the tone: Dashi powder gives the dipping sauce its characteristic Japanese savoury base; adjust the sauce to taste if using a different dashi product.

Equipment you'll need

Ingredients

Dipping sauce

Tempura

Instructions
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  1. Make the dipping sauce: warm the water in a small saucepan, whisk in the dashi powder, then stir in the soy sauce and mirin. Bring just to a gentle simmer, then take off the heat. Finely grate the ginger and stir it in, then set aside to cool.
  2. Prepare the tempura ingredients: pat the prawns dry, then make 3 to 4 shallow slashes along the belly side so they stay straight when fried. Cut the aubergine into thin wedges and slice the sweet potato into thin rounds; cut the broccoli into small florets. Keep everything as dry as possible so the batter clings well.
  3. Pour the vegetable oil into a large pot to a safe depth and heat to 170°C (340°F), using a thermometer to monitor. While the oil heats, set a sieve-strainer over a bowl for draining. Keep the heat steady so the tempura cooks quickly without browning too much.
  4. Make the batter: in a mixing bowl, whisk the egg with 180 ml of the water until just combined. Add the plain flour and cornflour and whisk very briefly, leaving a few small lumps; overmixing makes the batter heavy. The batter should be loose enough to coat but not thick like pancake batter.
  5. Fry in batches: dip the prawns and vegetables into the batter, let the excess drip off, then lower into the hot oil with tongs. Fry for 2 to 3 minutes for prawns and 3 to 4 minutes for vegetables, turning once, until pale golden and crisp. Lift out to the sieve-strainer to drain, then return the oil to temperature before the next batch.

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Recipe notes

Tips

  • Keep the batter cold and mix it minimally; a few lumps are good and help keep the coating light.
  • Fry in small batches so the oil temperature stays steady and the tempura stays crisp rather than greasy.
  • If serving vulnerable groups, make sure the prawns are cooked through: they should be opaque all the way through with no grey centres.

Substitutions

  • Replace Aubergine with Courgette for a lighter, quicker-cooking vegetable.
  • Replace Sweet potato with Butternut squash, sliced thinly, for a similar sweetness and texture.
  • Replace Mirin with Dry sherry for a similar sweetness and aroma in the dipping sauce.

Storage

  • Refrigerate up to 1 days
  • Tempura is best eaten straight away. If you must store it, refrigerate the fried pieces and the dipping sauce separately; reheat the tempura on a baking tray in a 200°C (390°F) oven for 6 to 8 minutes until hot and crisp, and warm the sauce gently in a saucepan.

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Tempura (Crispy Fried Seafood and Vegetables)
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Recipe overview

  • Servings: 3 servings
  • Total time: 45min (35min active)
  • Difficulty: Medium
  • Cuisine: Japanese
  • Allergens:
    Crustaceans Eggs Gluten Soybeans
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