Vicchisouse, also known as "vichyssoise," is a creamy soup made primarily from puréed leeks, onions, potatoes, cream, and chicken stock. Traditionally served cold, it is a French dish that is often enjoyed as a refreshing appetizer. The soup is named after Vichy, a spa town in France, and is popular for its smooth texture and delicate flavor. While it is typically served chilled, it can also be enjoyed warm.