Founded in 1925 (Taisho era), Yamamotoya Sohonke is considered the originator of miso-nikomi udon in Nagoya. With nearly a century of history, the restaurant is famous for its rich Hatcho miso-based broth and firm, thick noodles. The traditional way to eat here is using the pot lid as a plate. A Nagoya local institution with only a few directly-managed branches, beloved by both tourists and locals.

Praised as 'a must-eat when visiting Nagoya' with '100 years of history that speaks for itself.' Many reviewers say the deep umami of Hatcho miso and the firm noodle texture are addictive. Popular with repeat tourist visitors, especially long queues in winter.