French city from which a soup gets its name

VICHY

This spa town’s mineral waters inspired a creamy leek-and-potato dish.

This clue refers to Vichy, a town in central France known for its mineral springs. The soup in question is vichyssoise, a creamy potato and leek dish that originated there—though it was later popularized in America. The name directly ties the soup to the city, making "Vichy" the straightforward answer. No wordplay is involved; it’s a simple cultural reference to French cuisine.