This classic French Onion Soup recipe features slow-caramelized onions simmered in a rich broth. The soup is then ladled into individual ovenproof crocks, topped with a slice of baguette and a generous mix of Swiss and Parmesan cheese, and broiled until golden and bubbly. It's a comforting and flavorful dish perfect for a starter or light meal.
Prep Time 20 minutes mins
Cook Time 1 hour hr 30 minutes mins
Total Time 1 hour hr 50 minutes mins
Caramelizing the onions is the most crucial step and takes patience; don't rush it. Slicing with the grain helps the onions maintain structure. Deglazing with dry red wine adds depth. Using a combination of beef and chicken stock provides a balanced richness. Ensure the crocks are truly ovenproof for broiling. Monitor the cheese closely under the broiler as it browns quickly; a minute is often sufficient. Use good quality cheese and baguette for the best result.