Aizu Soba: Fukushima's Mountain Buckwheat Noodle Tradition

The Aizu region of western Fukushima is mountainous with a shorter growing season than the surrounding lowlands, conditions that suit buckwheat better than rice, and the area has grown and eaten soba for centuries as a result, with several towns maintaining distinct local soba traditions and buckwheat-growing histories. Aizu soba is typically served the traditional way, cold with a dipping sauce, letting the buckwheat's earthy, slightly nutty flavor come through rather than being masked by a hot broth.

One notably specific local custom, found in the town of Ouchi-juku and a few other Aizu spots, is eating soba using a single long green onion instead of chopsticks, biting into the noodles and then biting the onion itself between bites as a built-in condiment and utensil in one. It's a genuinely unusual, hands-on way to eat noodles and tends to surprise first-timers, though it's a specific local practice rather than how soba is eaten throughout Fukushima generally, so don't expect it at every soba counter in the region.