Cozy French Onion Soup with Sourdough & Gruyère

This French onion soup is the kind of slow, patient cooking that fills your kitchen with warmth and makes the whole house feel calmer. Deeply caramelized onions, a rich beef-and-chicken broth, and thick slices of toasted sourdough finished with bubbling gruyère — it’s simple, rustic, and deeply nourishing.