A side-by-side guide to zaru soba and zaru udon, covering the history, dipping sauce, proper eating technique, and the sobayu ritual so you can enjoy Japan's favorite cold noodle dishes at home this summer.

Somen and hiyamugi are both thin Japanese wheat noodles, but they differ in diameter, production method, and texture. Learn how to identify, cook, and serve each one for the perfect cold noodle experience this summer.