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Irresistible French Onion Soup Recipe with 4 Secret Tips

French Onion Soup

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A classic French onion soup with caramelized onions, rich beef broth, and melted cheese.

Ingredients

Scale
  • 4 large onions, thinly sliced
  • 4 tbsp butter
  • 1 tbsp olive oil
  • 1 tsp sugar
  • 1 tsp salt
  • 4 cups beef broth
  • 1 cup dry white wine
  • 1 tbsp flour
  • 1 baguette, sliced
  • 1 cup grated Gruyère cheese

Instructions

  1. Melt butter with olive oil in a large pot.
  2. Add onions, sugar, and salt. Cook on low heat until caramelized.
  3. Sprinkle flour over onions and stir.
  4. Add wine and beef broth. Simmer for 20 minutes.
  5. Toast baguette slices.
  6. Ladle soup into bowls, top with toasted bread and cheese.
  7. Broil until cheese melts and bubbles.

Notes

  • Use a mix of yellow and red onions for depth of flavor.
  • Cook onions slowly for best caramelization.
  • Substitute vegetable broth for a vegetarian version.

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