Step-by-step instructions
- In a large pot, melt the butter and olive oil over medium heat.
- Add the sliced onions and cook, stirring frequently, for 30-40 minutes until they turn deeply caramelized and golden brown. Adding sugar halfway through aids in enhancing this rich caramelization.
- Stir in the minced garlic and cook for another minute until it becomes fragrant.
- Pour in the white wine (if using) to deglaze the pot, scraping any browned bits from the bottom. Let the wine cook off for about 2-3 minutes.
- Add the beef broth, thyme, bay leaf, salt, and pepper. Bring it to a boil.
- Reduce the heat and let the soup simmer uncovered for 30 minutes. Taste and adjust the seasonings as necessary.
- While the soup simmers, preheat your broiler. Place the baguette slices on a baking sheet and broil for 1-2 minutes per side until toasted and golden.
- After simmering, discard the bay leaf. Ladle the hot soup into oven-safe bowls, leaving room at the top for the bread and cheese.
- Place one or two toasted baguette slices on top of each bowl, and then sprinkle with the shredded Gruyère cheese.
- Broil the bowls for 2-4 minutes or until the cheese is melted, bubbly, and golden brown.
- Carefully remove the bowls from the oven and serve immediately, garnished with extra thyme if desired.
Best ways to enjoy it
For a cozy dinner, serve your Classic French Onion Soup with a crisp salad or add a charcuterie board filled with meats and cheeses. Pair it with a robust red wine to elevate the experience. If you’re feeling adventurous, consider adding a drizzle of balsamic reduction for a unique flavor twist.
How to store
Storing your leftover soup is simple. Allow it to cool completely, then transfer it to an airtight container. Refrigerate for up to 3 days. If you’re looking to extend its life, you can freeze the soup for up to 2 months. When ready to eat, defrost in the refrigerator overnight and reheat gently on the stove. However, I recommend adding fresh toasted bread and cheese before serving to maintain that delightful texture.
Pro chef tips
- A little patience goes a long way! Don’t rush the caramelization process; it’s essential for maximizing the onions’ natural sweetness.
- Taste as you cook! Adjust the salt and pepper levels to your liking; everyone’s palate differs, and you may want a little extra seasoning.
- For an extra depth of flavor, send a couple of thyme sprigs into the broth during simmering, then discard before serving.
Creative twists
Experimenting with your Classic French Onion Soup can be a fun adventure! Consider adding a splash of sherry for a new flavor profile, or mix in some sautéed mushrooms for a heartier dish. If you’re feeling bold, a dash of Worcestershire sauce can deepen the umami flavors.
Common questions
What is the prep time for this recipe?
The total active prep time is about 10 minutes, though the caramelizing of the onions takes patience—about 30-40 minutes worth!
Can I make this recipe vegetarian?
Absolutely! Replace beef broth with vegetable broth, and skip the sugar if you’d like to keep it completely plant-based.
How can I store leftover soup safely?
Make sure to let the soup cool completely before transferring it to an airtight container. You can refrigerate for up to 3 days or freeze for up to 2 months. Just remember to reheat it properly before serving.
Embrace the art of this comforting dish, and soon enough, your kitchen will become the ultimate cozy haven. Enjoy this French classic with friends and family and watch your dinner table come alive!
