What is a key ingredient in the Baked Potato Soup?

The key ingredient in Baked Potato Soup is potatoes. This soup is designed around the rich, creamy flavor and texture that potatoes provide. When baked and blended into the soup, they contribute to a smooth consistency while also offering a hearty base that can be further enhanced with other flavors such as cheese, bacon, and green onions. The essence of Baked Potato Soup lies in celebrating the potato, making it an integral component of the dish. Other ingredients typically serve as complements or garnishes, but without potatoes, the dish would not achieve its defining characteristics.