French onion soup is a classic dish that is loved for its rich and savory flavors. Made with caramelized onions, beef broth, and topped with melted cheese and toasted bread, this soup is a true comfort food. The slow-cooked onions develop a deep and sweet flavor, while the broth adds a savory note. The melted cheese on top creates a gooey and delicious layer. Serve it in individual oven-safe bowls and broil until the cheese is bubbly and golden brown.