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–+ servings
French Onion Soup

Warm and Cozy French Onion Soup with Bubble-Topped Cheese

This French Onion Soup is a cozy hug in a bowl, featuring caramelized onions, savory broth, and a bubbly cheese topping.
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Prep Time 15 minutes
Cook Time 1 hour 30 minutes
Total Time 1 hour 45 minutes
Servings: 4 bowls
Course: Soups
Cuisine: French
Calories: 350
Ingredients Equipment Method Nutrition Notes

Ingredients
  

For the Soup
  • 4 large Yellow Onions Sweet yellow onions for optimal caramelization
  • 4 tablespoons Unsalted Butter Adds richness
  • 2 tablespoons Olive Oil Prevents butter from burning
  • 1 teaspoon Salt Enhances flavors
  • 1 teaspoon Sugar Aids in caramelization
  • 8 cups Beef Broth (or Vegetable Broth) Base for the soup
  • 1 cup Dry White Wine Adds richness
  • 3 sprigs Fresh Thyme For aroma
  • 1 leaf Bay Leaf Remove before serving
  • to taste Freshly Ground Black Pepper For seasoning
For the Topping
  • 1 cup Gruyère Cheese (or Swiss Cheese) Melted cheese topping

Equipment

  • large pot or Dutch oven

Method
 

Step-by-Step Instructions
  1. Thinly slice the yellow onions and set aside.
  2. Add butter and olive oil to a large pot and heat until melted.
  3. Add the sliced onions, stirring to coat in the buttery mixture and cook for about 5 minutes.
  4. Sprinkle salt and sugar over the onions, reduce heat and let caramelize for approximately 40 minutes.
  5. Pour beef broth and white wine over the onions, add thyme and bay leaf, and bring to a gentle boil.
  6. Reduce heat and simmer uncovered for 30 minutes, seasoning with black pepper.
  7. Toast sliced baguette rounds at 375°F for about 10 minutes.
  8. Ladle soup into bowls, top with toasted baguette and grated cheese.
  9. Broil the bowls for 2-3 minutes until cheese is golden brown.
  10. Serve warm, garnished with fresh thyme.

Nutrition

Serving: 1bowlCalories: 350kcalCarbohydrates: 30gProtein: 10gFat: 20gSaturated Fat: 10gPolyunsaturated Fat: 1gMonounsaturated Fat: 8gCholesterol: 40mgSodium: 900mgPotassium: 500mgFiber: 2gSugar: 5gVitamin A: 200IUVitamin C: 10mgCalcium: 200mgIron: 2mg

Notes

Patience is key when caramelizing onions. Serve with optional truffle oil for added flavor.

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