Frozen udon noodles are thick and chewy Japanese noodles made from wheat flour, water, and salt. They’re a popular ingredient used in many Japanese dishes, including hot udon soup, stir-fries, and salads. Frozen udon noodles are convenient because they can be stored in the freezer and cooked whenever you want them. To prepare, simply boil the noodles in water until they’re tender and then rinse them in cold water to stop the cooking process. Frozen udon noodles have a satisfying chewy texture and absorb flavors well, making them a delicious and versatile ingredient in your kitchen.