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Irresistible French Onion Soup Recipe with 4 Golden Secrets

French Onion Soup Recipe

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A classic French onion soup with caramelized onions, beef broth, and melted cheese on toasted bread.

Ingredients

Scale
  • 4 large onions, thinly sliced
  • 4 tbsp butter
  • 1 tbsp olive oil
  • 1 tsp sugar
  • 1/2 tsp salt
  • 4 cups beef broth
  • 1 cup white wine
  • 1 bay leaf
  • 1 tsp thyme
  • 4 slices French bread
  • 1 1/2 cups shredded Gruyère cheese
  • 1/2 cup grated Parmesan cheese

Instructions

  1. Melt butter with olive oil in a large pot over medium heat.
  2. Add onions, sugar, and salt. Cook until caramelized (about 30 minutes).
  3. Pour in white wine and cook until reduced by half.
  4. Add beef broth, bay leaf, and thyme. Simmer for 20 minutes.
  5. Toast French bread slices until golden.
  6. Ladle soup into bowls, top with bread and cheeses.
  7. Broil until cheese melts and bubbles.

Notes

  • Slice onions thinly for even caramelization.
  • Use a mix of Gruyère and Parmesan for best flavor.
  • Adjust salt to taste.

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