French Onion Soup

French Onion Soup

French Onion Soup

Slow-caramelised onions in a rich beef broth, topped with a toasted crouton and a golden, bubbling gruyère crust.

Cuisines

French

Best for

Lunch Dinner

Recipe

Prep: 15 min Cook: 55 min Total: 70 min 2-3 servings

Ingredients

3 tablespoons unsalted butter
1 tablespoon olive oil
3 large yellow onions, thinly sliced
1 teaspoon sugar
1 teaspoon salt
1/2 teaspoon black pepper
2 tablespoons all-purpose flour
4 cups beef stock
1/2 cup dry white wine
1 teaspoon fresh thyme leaves
1 cup grated Gruyère cheese

Instructions

  1. 1 Melt the butter with the olive oil in a large pot over medium heat.
  2. 2 Add the sliced onions and cook, stirring frequently, until they are soft and caramelized, about 25 minutes.
  3. 3 Sprinkle the sugar, salt, and pepper over the onions and continue to cook for another 5 minutes.
  4. 4 Stir in the flour and cook for 2 minutes to remove the raw flour taste.
  5. 5 Gradually add the beef stock and white wine, stirring constantly to prevent lumps.
  6. 6 Add the thyme and bring the soup to a simmer. Cook for 20 minutes, allowing the flavors to meld.
  7. 7 Preheat the oven broiler. Place the baguette slices on a baking sheet and toast under the broiler until golden brown.
  8. 8 Ladle the soup into ovenproof bowls, place a toasted baguette slice on top of each, and sprinkle generously with Gruyère cheese.
  9. 9 Place the bowls under the broiler until the cheese is bubbly and golden brown, about 3-5 minutes.

Tips

For a richer flavor, use a mix of beef and chicken stock.