Potato leek soup is a creamy and comforting soup that is made with potatoes, leeks, and broth. It starts with sautéing leeks in butter until they are soft and fragrant. Potatoes are then added along with vegetable or chicken broth, and the soup is simmered until the potatoes are tender. The soup is then blended until smooth and finished with a touch of cream. It's a simple and satisfying soup that is perfect for a chilly day.