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French Onion Soup Recipe

Delicious and authentic French Onion Soup with caramelized onion, french bread, and melted fontina cheese! It's so easy to make with my step by step photo instructions.
Course Soup
Cuisine French
Keyword French Onion Soup
Prep Time 15 minutes
Cook Time 40 minutes
Total Time 55 minutes
Servings 6
Calories 346kcal
Author Dina from simplyhomecooked.com


For the Soup

  • 6 sweet yellow onion (not regular onions)
  • 4 tbsp butter
  • 2 tbsp olive oil
  • 3 cloves garlic (minced)
  • 1 tsp dried thyme
  • 2 tsp salt
  • 1/2 tsp black pepper
  • 1/2 cup dry sherry
  • 6 cups low sodium beef broth

For the cheese and bread topping

  • 1/2 loaves French bread (sliced)
  • Shredded Fontina cheese


Caramelize the onions

  • Slice the sweet yellow onion into strips.
  • In a heavy-bottomed pot, heat butter and olive oil over medium-high heat. Then add in all of the sliced onions. Cook the onions for about 15-20 minutes while constantly stirring.
  • Once the onion has softened, add the minced garlic, dried thyme, salt, and pepper.
  • Drop the heat to medium and let the onion cook with the spices for about 4 minutes.

Add the wine and beef broth

  • Bring the heat back to high and add the dry sherry. Stir for about 3 minutes to let the wine cook out.
  • Pour the beef broth into the pot and let it simmer for another 15 minutes.
  • Meanwhile, place the sliced French bread onto a baking sheet and bake at a 360 degrees Fahrenheit until golden brown.

Pour soup into oven safe bowls

  • Fill each oven-safe soup bowl with the soup and place 2 pieces of French bread on top of the soup. Then sprinkled a layer of freshly shredded fontina cheese.
  • Broil the soup in the oven until the cheese becomes bubbly and golden brown.


Note: if you don't have oven-safe soup bowls, the soup can still be enjoyed without the bread and cheese


Calories: 346kcal | Carbohydrates: 45g | Protein: 11g | Fat: 13g | Saturated Fat: 6g | Cholesterol: 20mg | Sodium: 1482mg | Potassium: 937mg | Fiber: 4g | Sugar: 18g | Vitamin A: 235IU | Vitamin C: 16.3mg | Calcium: 91mg | Iron: 2.3mg