Radish Potato Soup, also known as Rettich Kartoffel Suppe, is a hearty and comforting soup that is popular in German cuisine. This soup combines the earthy flavors of radishes and potatoes with the richness of cream and butter. The radishes and potatoes are cooked until tender and then pureed to create a smooth and creamy texture. The soup is seasoned with herbs and spices, adding depth and complexity to the flavors. It is a satisfying dish that is perfect for chilly days.