This variation on the theme of stir-fried noodles was developed soon after the end of World War II in the city of Yokote, Akita Prefecture, as an afternoon snack for local children. Wheat flour noodles are wok-fried, seasoned with a sweetened Worcester-style sauce, then topped with a fried egg. The noodles are straight, rather than crinkly, and each serving comes with a relish of soy-pickled vegetable known as Fukujin-zuke.