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French Onion Soup

French Onion Soup

Abby Marlow
Classic French Onion Soup with caramelized onions, rich broth, and melted Gruyère cheese, perfect for cozy nights.
Prep Time 15 minutes
Cook Time 50 minutes
Total Time 1 hour 5 minutes
Course Appetizer, Soup
Cuisine American, French
Servings 4 servings
Calories 230 kcal

Ingredients
  

Soup Base

  • 8 large onions halved and thinly sliced
  • 3 tablespoons unsalted butter
  • 2 tablespoons olive oil
  • 2 cloves garlic minced
  • 1.5 teaspoons fresh thyme leaves
  • 0.25 cup dry white wine
  • 6 cups low-sodium chicken broth
  • 1 bay leaf
  • 2 teaspoons Worcestershire sauce
  • Salt and pepper to taste

To Serve

  • Sliced baguette toasted
  • 1.5 cups grated Gruyère cheese

Instructions
 

Soup Base

  • Melt butter and olive oil in a heavy pot over medium heat.
  • Add onions and stir to coat; cook, stirring every few minutes, until golden brown, about 45 minutes.
  • Stir in garlic and thyme; cook until fragrant, about 1 minute.
  • Pour in white wine, scraping up any browned bits; simmer until mostly evaporated, 1–2 minutes.
  • Add broth and bay leaf; bring to a gentle simmer and cook 10 minutes. Stir in Worcestershire sauce and season with salt and pepper.

To Serve

  • Preheat oven to 400°F. Divide soup among oven-safe bowls, top with toasted baguette and Gruyère.
  • Bake until cheese is melted and bubbling, about 5–10 minutes. Serve immediately.

Notes

Stir frequently to prevent onions from sticking and burning.
Cool soup within 2 hours before refrigerating to ensure safety.
Reheat gently until steaming, then add bread and cheese just before serving.
Keyword caramelized onions, Comfort Food, French Onion Soup, Gruyère soup, onion soup