This classic udon soup recipe is a comforting and delicious dish that can be easily made using a Thermomix. The key ingredients for this recipe include thick wheat udon noodles, a flavorful broth, and various toppings. To make the broth, you will need ingredients such as dashi stock, soy sauce, mirin, and sake. These ingredients come together to create a rich and savory base for the soup. The udon noodles are cooked separately and then added to the broth along with toppings like green onions, tempura, and sliced kamaboko (fish cake). The result is a hearty and satisfying bowl of udon soup that is perfect for any time of the year.