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Classic French Onion Soup Recipe – Rich, Cheesy & Irresistible 🧅🧀


French Onion Soup is a timeless classic, known for its deep caramelized flavors, rich beef broth, and gooey melted cheese on top. Whether you’re craving a cozy meal or impressing guests, this dish is a perfect comfort food. Let’s dive into the best way to make restaurant-quality French Onion Soup at home!

Why You’ll Love This Recipe

Deep, Savory Flavor – Slow-cooked onions bring out an incredible taste.
Golden, Gooey Cheese Topping – Melted Gruyère makes it irresistible.
Restaurant-Style at Home – Impress your guests with this classic dish!
Perfect for Cold Weather – Warm, cozy, and satisfying.


Ingredients 🛒

For the Soup:

  • 4 large yellow onions, thinly sliced
  • 3 tbsp unsalted butter
  • 1 tbsp olive oil
  • 2 tsp sugar (helps with caramelization)
  • 1 tsp salt
  • 4 cloves garlic, minced
  • ½ cup dry white wine (optional, enhances depth)
  • 6 cups beef broth (use high-quality broth for rich flavor)
  • 2 tsp Worcestershire sauce
  • 1 tsp fresh thyme leaves (or ½ tsp dried thyme)
  • 1 bay leaf
  • Black pepper, to taste

For the Topping:

  • 1 French baguette, sliced into rounds
  • 2 tbsp butter, melted
  • 2 cups Gruyère cheese, shredded (or Swiss cheese)

Instructions 👨‍🍳

Step 1: Caramelize the Onions

  1. In a large pot, melt butter and olive oil over medium-low heat.
  2. Add sliced onions, sugar, and salt, stirring occasionally. Cook for 40-45 minutes until onions are golden brown and caramelized.
  3. Stir in the garlic and cook for another 1-2 minutes.

Step 2: Build the Broth

  1. Pour in the white wine, scraping up any browned bits from the pot. Let it simmer for 5 minutes.
  2. Add beef broth, Worcestershire sauce, thyme, bay leaf, and black pepper. Bring to a boil, then reduce heat and let it simmer for 20 minutes.

Step 3: Prepare the Crusty Cheese Topping

  1. While the soup simmers, preheat the oven to 400°F (200°C).
  2. Brush the baguette slices with butter, place them on a baking sheet, and toast for 5 minutes until golden.
  3. Remove from the oven and set aside.

Step 4: Assemble and Broil

  1. Remove the bay leaf from the soup and ladle it into oven-safe bowls.
  2. Place toasted baguette slices on top, then sprinkle generously with Gruyère cheese.
  3. Place the bowls under the broiler for 2-3 minutes until the cheese is bubbly and golden brown.

Pro Tips for the Best French Onion Soup

Use Sweet Onions – Yellow or Vidalia onions work best for caramelization.
Patience is Key – Caramelizing onions properly takes at least 40 minutes.
Choose the Right Cheese – Gruyère is traditional, but Swiss or provolone also work.
Use Homemade Broth – If possible, homemade beef broth elevates the flavor.


Frequently Asked Questions (FAQs)

❓ Can I Use a Different Cheese?

Yes! Gruyère is the best choice, but Swiss, provolone, or mozzarella can be used as substitutes.

❓ Can I Make This Ahead of Time?

Absolutely! Store the soup (without the cheese topping) in the fridge for up to 3 days. Reheat and add fresh cheese before serving.

❓ Can I Freeze French Onion Soup?

Yes! Freeze the soup without the bread and cheese for up to 3 months. Thaw, reheat, and finish with fresh toppings.


Final Thoughts 💭

French Onion Soup is the ultimate comfort food, packed with deep flavors, crispy bread, and gooey cheese. Whether you're making it for a cozy night in or impressing guests, this dish is a true classic. Try it today and let us know how it turned out!

🔸 Loved this recipe? Share it with your friends and family! ❤️


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