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French Onion Soup Recipe Easy Cozy Homemade with Gruyere Cheese Crust

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A cozy and easy French onion soup featuring slow caramelized onions and a rich Gruyere cheese crust, perfect for warming up on chilly evenings.

Ingredients

Scale
  • 4 large yellow onions, thinly sliced
  • 3 tablespoons unsalted butter
  • 1 tablespoon olive oil
  • 2 garlic cloves, minced
  • 6 cups beef broth
  • 1/2 cup dry white wine (optional)
  • 3 sprigs fresh thyme or 1 teaspoon dried thyme
  • 1 bay leaf
  • Salt and freshly ground black pepper to taste
  • 8 slices baguette, toasted
  • 2 cups Gruyere cheese, shredded

Instructions

  1. Peel and thinly slice 4 large yellow onions (about 10 minutes).
  2. In a large heavy-bottomed pot, melt 3 tablespoons unsalted butter with 1 tablespoon olive oil over medium heat. When sizzling, add the onions.
  3. Caramelize the onions by stirring every few minutes, cooking low and slow for about 40 minutes until deeply golden and sweet. Adjust heat to prevent burning.
  4. Add 2 minced garlic cloves and cook for 1-2 minutes until fragrant.
  5. Pour in 1/2 cup dry white wine (optional) to deglaze the pot, simmer until mostly evaporated, about 3-4 minutes.
  6. Add 6 cups beef broth, 3 sprigs fresh thyme, and 1 bay leaf. Season with salt and pepper. Bring to a gentle simmer and cook uncovered for 20 minutes to meld flavors.
  7. While soup simmers, toast 8 slices of baguette until golden and crisp. Shred 2 cups Gruyere cheese finely.
  8. Remove thyme sprigs and bay leaf from soup. Ladle soup into oven-safe bowls. Place toasted baguette slices on top, then pile generously with Gruyere cheese.
  9. Place bowls on a baking sheet under the broiler for 3-5 minutes, watching carefully until cheese is bubbly and browned.
  10. Let cool for a minute or two and serve immediately.

Notes

Caramelize onions slowly over medium-low heat to avoid bitterness. Toast bread well to prevent sogginess. Use high-quality Gruyere cheese for best melt and flavor. Watch cheese carefully under broiler to avoid burning. For vegetarian version, substitute beef broth with vegetable broth and omit wine or use apple cider vinegar.

Nutrition

Keywords: French onion soup, Gruyere cheese, caramelized onions, cozy soup, easy soup recipe, homemade French onion soup

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