Zaru Soba
Buckwheat noodles rinsed in ice water and served cold on a bamboo mat with a small cup of concentrated dipping sauce. The most minimal dish in Japanese cooking, and the one where noodle quality has nowhere to hide.
Photograph credit: Zaru-Soba-1 by Evelyn-rose · CC0 1.0 · Wikimedia
Method
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Make the tsuyu first: bring the mirin to a boil for 30 seconds to cook off the alcohol, add the soy, sugar and dashi, and bring back to a simmer.
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Take off the heat, stir in the bonito flakes and leave 5 minutes, then strain and chill thoroughly. It should be assertively salty on its own.
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Bring a large pan of unsalted water to a rolling boil — soba needs no salt, unlike pasta.
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Cook the noodles for the time on the packet, usually 4 to 5 minutes, stirring at the start so they do not stick.
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Drain and immediately wash the noodles under cold running water, rubbing them gently between your hands until the water runs clear and they feel squeaky rather than slick.
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Plunge into a bowl of ice water for 30 seconds, then drain very well.
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Pile onto bamboo mats or plates, scatter with nori, and serve with cups of cold tsuyu and the spring onion, wasabi and daikon to stir in to taste.
Chef’s Tips
- Buy soba with a high buckwheat percentage — the cheapest packets are mostly wheat flour and taste of very little.
- Do not skip the cold rinse even if you are in a hurry. It is what makes the noodles taste clean.
- Save the noodle cooking water. Traditionally it is added to the leftover dipping sauce and drunk at the end as sobayu.
Common Substitutions & Variations
- Out of spring onions? A small regular onion, finely sliced, or a few chives stirred in at the end both cover the job.
Pairing Suggestions
- Tempura prawns or vegetables
- Chilled sake or barley tea
- Agedashi tofu as a starter
Storage & Reheating
Cooked soba can be refrigerated for a day in cold water, drained just before serving. The tsuyu keeps 2 weeks refrigerated.
Common questions
How long does Zaru Soba take to make?
About 18 minutes in total — 10 minutes of preparation and 8 minutes of cooking. The recipe serves 2.
What are the key tips for making Zaru Soba?
Buy soba with a high buckwheat percentage — the cheapest packets are mostly wheat flour and taste of very little. Do not skip the cold rinse even if you are in a hurry. It is what makes the noodles taste clean. Save the noodle cooking water. Traditionally it is added to the leftover dipping sauce and drunk at the end as sobayu.
What should I serve with Zaru Soba?
Tempura prawns or vegetables; Chilled sake or barley tea; Agedashi tofu as a starter.
How should Zaru Soba be stored?
Cooked soba can be refrigerated for a day in cold water, drained just before serving. The tsuyu keeps 2 weeks refrigerated.
Is Zaru Soba suitable for a special diet?
This recipe is vegan, dairy-free and vegetarian. Those labels are checked against the ingredient list, so a dish is only marked when nothing in it contradicts the claim.
How many calories are in Zaru Soba?
About 412 kcal per serving, with 16 g protein, 78 g carbohydrate and 3 g fat. The figures are calculated from the ingredient list and are an estimate.
Nutritional Highlights
Per serving, calculated from the ingredient list. Treat these as an estimate — brands and cuts vary.
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Written and tested by Turab
One person, one kitchen — no test kitchen, no team. How every recipe on this site is checked before it goes up.