Sarashina Horii's Moto-Azabu flagship is where sarashina soba — the pale, almost porcelain-white noodle now imitated across Tokyo — was born, and the Horii family has been perfecting it since 1789. The recipe uses only the starchy core of the buckwheat kernel, milled and worked into strands so smooth they hold barely any bite, a texture prized enough that earlier generations of Horii were once called on to serve the shogun and visiting daimyo. Eight generations later, the same technique carries on at this Edo-rooted honten, a short walk from Azabu-Juban Station.
Order the classic seiro and the noodles arrive with two dipping sauces side by side — a lighter, more delicate tsuyu built to let the sarashina's subtlety come through, and a darker, more assertive kaeshi for contrast. Beyond the basics, the kitchen turns out kamo seiro (cold soba with grilled duck), natto soba, and a rotating seasonal noodle that might carry sakura shrimp, yuzu, or shiso depending on the month. Vegetable tempura is on the menu Monday through Saturday.
One nuance worth knowing if you eat vegetarian or vegan: the everyday tsuyu, like most soba dipping sauce in Tokyo, is built on bonito dashi. Since October 2023, though, Sarashina Horii has run a rotating monthly vegan menu using a plant-based dashi substitute, MIRA-Dashi, developed specifically so the kitchen could serve a genuinely animal-free version of its Edo-style soba rather than a compromise — worth calling ahead to check whether it's running the month you visit.
Reservations are accepted for weekday seatings only; weekends run first-come, first-served, and a line often forms before the doors open. English, Chinese, and Korean menus are available, and both cash and major credit cards are accepted.
✓ Last verified Jul 2026
Hours and details can change — please confirm before you visit.
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