Split pea soup is a thick, hearty dish made primarily from dried split peas, which are green or yellow legumes. The peas are cooked until soft and often blended to create a smooth texture. Common ingredients include onions, carrots, celery, and various seasonings, making it flavorful and nutritious. This soup is typically simmered for several hours, allowing the flavors to meld together. It is often enjoyed as a comforting meal, especially in colder months. Split pea soup is also a popular choice for those seeking vegetarian or vegan options, as it is rich in protein and fiber.