Walla Walla Onions are a sweet onion variety grown in the Walla Walla Valley of Washington State. Known for their mild flavor and high sugar content, these onions are typically larger and have a more rounded shape compared to other onion types. They are often enjoyed raw in salads or on sandwiches due to their sweetness. The unique climate and volcanic soil of the Walla Walla region contribute to the onions' distinctive taste. Walla Walla Onions are usually harvested in late spring and early summer, making them a seasonal favorite for many chefs and home cooks alike.