Which cheese is featured prominently in French Onion Soup?

In French Onion Soup, the prominently featured cheese is typically Swiss cheese. This cheese complements the rich flavor of the caramelized onions and the broth, as it melts beautifully and creates a creamy, gooey texture that enhances the overall eating experience. Swiss cheese has a mild nutty flavor that pairs well with the sweetness of the onions and the savory broth, making it a classic choice for this dish.

While options like cheddar, provolone, and Monterey Jack might be used in various recipes or adaptations, Swiss cheese remains the traditional and most recognized cheese used in authentic French Onion Soup. Its excellent melting qualities and flavor profile are suited specifically for this dish, adding to the iconic taste that many expect when they enjoy a bowl of French Onion Soup.