This French Onion Soup is a timeless classic that transforms simple ingredients into a deeply flavorful and satisfying dish. Thinly sliced onions are slowly caramelized in butter until perfectly golden and sweet, then lightly thickened with flour before being simmered in rich beef stock with fragrant thyme. A splash of white wine and dry sherry adds depth and complexity, while a touch of lemon and cayenne balances the rich flavors with subtle brightness and warmth. The result is a beautifully savory soup with layers of sweet, earthy, and aromatic flavor that's perfect on its own or topped with toasted bread and melted Gruyère cheese for the iconic French bistro experience. Whether served as a starter or the main event, this comforting recipe is a true celebration of classic French cooking.
