Soupe à l'oignon

Soupe à l'oignon, or French onion soup, is a comforting dish made primarily from caramelized onions simmered in broth, typically beef or vegetable. The slow cooking of onions develops a rich, sweet flavor. It's traditionally served hot, topped with crusty toasted bread, and coated with melted cheese, often Gruyère, creating a savory, cheesy crust. The combination of deep, caramelized onions and melted cheese offers a layered taste experience. This classic French dish is enjoyed as a hearty appetizer or main, especially in cooler weather, celebrated for its warm, earthy flavors and appealing presentation.