This Creamy Leek and Potato Soup, known in French as Soupe Vichyssoise (or sometimes “Potage Parmentier) is made of puréed leeks and potatoes, enriched with cream. This is a simple soup that’s absolutely comforting when enjoyed warm on a chilly day. But I love that you can also enjoy it chilled. It makes for a perfectly refreshing bowl during warmer days too.