These thick and chewy Japanese noodles are made with wheat flour, and along with soba, they are one of the most popular and most common Japanese noodle varieties. The traditional and most common form of udon is characterized by its round shape, firm texture, and substantial size.
However, there are also many regional varieties that differ in size and thickness. A staple of Japanese cuisine, they are used in numerous traditional dishes and local specialties. In their simplest form, udon noodles are served in kake udon, a refreshing noodle soup with a flavorful broth made with soy sauce, dashi, and mirin.
Traditional condiments served on top of or alongside udon noodles depend on the season, and they often include sliced spring onions, tempura-battered vegetables or shrimp, fried tofu, or rice cakes. Numerous stories surround the origin of udon noodles, but most of them agree on the fact that udon was originally Chinese and was probably brought to Japan by Buddhist monks.
Initially, they were a type of food that was reserved exclusively for the upper-class citizens, while buckwheat soba noodles were consumed by the lower classes. This relationship has reversed in modern times, and nowadays udon noodles are less expensive and more easily produced than soba.