Udon are thick, springy noodles made of wheat flour. They are often served in a hot soy sauce-seasoned dashi broth. Typical dashi broth is made from water, dried kelp, and bonito flakes.
There are a variety of toppings for udon: deep-fried tofu, green onions, kelp, an egg, tempura, processed fish paste, and so on. One of the most popular toppings is sweetened deep-fried tofu.
Udon are very popular among people of all ages and widely available at restaurants in Japan.