Tempura Recipe

Tempura is a hallmark of Japanese cuisine: seafood and vegetables coated in an ultra-light, lacy batter and deep-fried so they stay crisp on the outside and tender within, then dipped in a delicate soy–dashi sauce. It appears everywhere from humble noodle shops to refined tempura counters, so if you want to appreciate how this once “foreign” technique became a symbol of Japanese refinement and seasonality, take a moment to read more about the history and cultural significance of tempura before you fry.

Ingredients

Tempura ingredients (tane)

Use any mix of seafood and vegetables; for 4 servings:

8–12 shrimp or prawns, peeled and deveined (tails on if you like)
1 small sweet potato, peeled and sliced ¼ inch thick
½ small kabocha or other pumpkin, thin slices
1 small eggplant, sliced into sticks or rounds
4–6 shiitake mushrooms, stems removed
A few green beans, asparagus, or shiso leaves (optional)

Plus:

All-purpose flour or potato starch for light dusting
Neutral oil for deep-frying (rice bran, canola, or vegetable)

Tempura batter (crisp, light)

1 egg, lightly beaten and well chilled
1 cup (240 ml) ice-cold water (or half water, half sparkling water)
1 cup (about 120 g) low-protein flour (cake or pastry flour preferred), sifted
2–3 tbsp cornstarch or potato starch (optional, for extra crispness)
A few ice cubes to keep batter cold (optional)

Tentsuyu dipping sauce

¾ cup (180 ml) dashi (Japanese soup stock)
3 tbsp soy sauce
2 tbsp mirin
1–2 tsp sugar (optional, to taste)

To serve:

Grated daikon radish (optional)

Step 1 – Prepare the dipping sauce (tentsuyu)

In a small saucepan, combine dashi, soy sauce, mirin, and sugar.
Bring just to a boil, then reduce heat and simmer until sugar dissolves.
Remove from heat and set aside; serve warm or at room temperature with a little grated daikon, if using.

Step 2 – Prep the seafood and vegetables

Pat shrimp very dry; make a few shallow slits on the underside and gently straighten so they fry flat.
Slice sweet potato and pumpkin into thin, even pieces; soak sweet potato slices in water 15–20 minutes to remove excess starch, then dry well.
Cut eggplant and other vegetables into bite-sized pieces; pat completely dry.

Step 3 – Heat the oil

Pour oil into a deep pot or wok to a depth of about 2 inches.
Heat to 340–360°F (170–180°C); a drop of batter should sink briefly then rise and bubble actively.

Step 4 – Make the tempura batter

In a bowl, lightly beat the cold egg, then stir in the ice-cold water.
In a separate bowl, mix sifted flour and starch.
Add dry ingredients to the egg–water mixture in 2–3 additions, stirring with chopsticks just a few times; leave small lumps and some unmixed flour.
Keep the bowl over ice or add a couple of ice cubes to keep the batter very cold.

Step 5 – Coat and fry

Lightly dust each shrimp and vegetable piece with flour or potato starch; shake off excess.
Dip a few pieces at a time into the batter, letting excess drip off.
Carefully slide into hot oil; fry in small batches 1–2 minutes until pale golden and crisp (tempura should be light, not deeply browned).
Remove with chopsticks or a slotted spoon to a rack or paper towels to drain.

Step 6 – Serve

Arrange tempura on a plate lined with paper or a rack so it stays crisp.
Serve immediately with warm tentsuyu and small dishes of grated daikon on the side.
Eat tempura while hot and airy for the best texture.

Tips & tricks

Keep everything cold: egg, water, even flour if possible; cold batter limits gluten and makes lighter tempura.
Mix the batter briefly with chopsticks and leave lumps; overmixing makes it heavy and chewy.
Dry ingredients thoroughly—any surface moisture creates heavy coating and splattering.
Dust in flour or starch before battering; this helps the batter cling evenly.
Fry at 340–360°F (170–180°C) and in small batches so the oil temperature stays steady.
Work quickly and serve right away; tempura is at its best within minutes of frying.
Use low-protein flour (cake or pastry) plus a little starch for the crispiest, lightest crust.