Classic French Onion Soup
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lunchMedium
🥦 Vegetarian

Classic French Onion Soup

Sweet, deeply caramelized onions in a rich beef broth, topped with a crouton and a golden, bubbling gruyère crust. The ultimate French bistro comfort.

Total Time

90 min

Servings

4

Cuisine

French

Rating

No reviews yet

Prep Time

15 min

Cook Time

75 min

Total Time

90 min

Ingredients

Servings:
4
  • 1.5kg yellow onions, thinly sliced
  • 4 tbsp unsalted butter
  • 2 tbsp olive oil
  • 1 tsp sugar
  • 4 garlic cloves, minced
  • 150ml dry white wine or dry sherry
  • 1.5L good-quality beef broth
  • 2 sprigs fresh thyme
  • 1 bay leaf
  • Salt and black pepper
  • 8 slices baguette, toasted
  • 200g Gruyère cheese, grated

Instructions

  1. 1

    Melt butter with olive oil in a large heavy pot over medium heat. Add onions and sugar. Cook, stirring occasionally, for 45-60 minutes until deeply golden and caramelized.

  2. 2

    Add garlic and cook 2 minutes. Add wine and scrape up any browned bits. Cook until wine evaporates.

  3. 3

    Add broth, thyme, and bay leaf. Simmer 20 minutes. Season with salt and pepper. Remove herbs.

  4. 4

    Preheat broiler. Ladle soup into oven-safe bowls placed on a baking sheet.

  5. 5

    Place 2 toasted baguette slices on top of each bowl. Pile Gruyère generously over the croutons.

  6. 6

    Broil 3-5 minutes until cheese is melted, bubbly, and golden brown in spots. Serve immediately — the bowls will be very hot.

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Nutrition Highlights

Per serving

520

kcal

Calories

22

g

Protein

42

g

Carbs

28

g

Fat

Dietary Info

vegetarian

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