Miso soup is a traditional Japanese soup made from dashi, a broth typically made from fish or seaweed, and miso, a fermented soybean paste. It often includes ingredients like tofu, seaweed, and green onions, providing a savory and umami flavor. This soup is commonly served as a side dish in Japanese meals and is known for its health benefits, including probiotics from the miso. Miso soup can be enjoyed hot and is versatile, with variations that may include seasonal vegetables or different types of miso for unique flavors.