Udon noodles are thick, chewy noodles made from wheat flour, water, and salt. They are a staple in Japanese cuisine and can be served in various ways, including hot in soup or cold with dipping sauce. Udon noodles are known for their smooth texture and ability to absorb flavors from broths and sauces. These noodles come in different sizes and can be found in both fresh and dried forms. Commonly enjoyed with toppings like green onions, tempura, or tofu, udon dishes are versatile and can be customized to suit individual tastes.