Sauce Katsudon — Fukui's Signature Pork Cutlet Bowl

Sauce katsudon is Fukui's regional soul food and the polar opposite of the egg-bound katsudon known elsewhere in Japan. Here, a pork cutlet (tonkatsu) is breaded, fried golden, then dipped in a sweet-savory Worcestershire-based sauce and placed atop a bowl of plain white rice. No egg. No onion. No dashi. Just pork, sauce, and rice. The result is intensely crispy (the sauce doesn't sog the breading as egg does), deeply umami, and somehow lighter than the Tokyo version.

The dish originated in the early 1900s at a Fukui restaurant called Yōrōken, where the chef adapted European-style cutlets for Japanese tastes. The recipe spread through Fukui but never gained traction elsewhere — today, sauce katsudon remains hyper-regional. Yōrōken still operates, now in its fourth generation, serving the same recipe in a wooden building unchanged since 1913. The line forms outside at 11:00am daily.