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Classic French Onion Soup Recipe

Classic French Onion Soup Recipe
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Learn how to make Classic French Onion Soup like a restaurant chef! Caramelized onions, savory broth, and toasted cheesy bread come together in this cozy and rich French dish. Vegetarian and gluten-free adaptable.

Ingredients

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  • 4 tablespoons butter (unsalted or salted)
  • 1 tablespoon olive oil or vegetable oil
  • 3 pounds yellow or sweet Vidalia onions, thinly sliced
  • 3/4 teaspoon kosher or sea salt
  • 1/4 teaspoon ground black pepper
  • 3/4 cup dry white wine (or broth)
  • 1 tablespoon dry sherry (or cider vinegar)
  • 2 tablespoons all-purpose flour
  • 8 cups beef broth (or vegetable/chicken broth)
  • 1 bay leaf
  • 2 fresh thyme sprigs (or 1/2 tsp dried thyme)
  • 1/2 teaspoon Worcestershire sauce
  • 1 small baguette, sliced 1/2-inch thick
  • 6 ounces Gruyère cheese, grated (or Fontina/Mozzarella)
  • Optional: fresh thyme or chopped chives for garnish

Instructions

1. In a large pot, heat butter and oil over medium heat. Add onions, salt, and pepper. Stir occasionally and cook uncovered for 45–55 minutes until caramelized and deep golden brown.

2. Deglaze with wine and sherry. Cook until nearly evaporated, about 5–6 minutes. Stir in flour and cook for 1 minute.

3. Slowly add one cup of broth while stirring constantly. Then add remaining broth, bay leaf, thyme, and Worcestershire sauce. Bring to a boil, reduce heat, and simmer for 20 minutes.

4. Meanwhile, preheat oven to 400ºF. Toast baguette slices for 8–10 minutes until crisp.

5. Remove bay leaf and thyme from soup. Adjust seasoning to taste.

6. To broil: pour hot soup into oven-safe bowls. Top each with toasted bread and sprinkle with cheese.

7. Place under broiler 6 inches from heat until cheese is melted and bubbly. Serve garnished with thyme or chives if desired.

Notes

• If onions brown too quickly, reduce heat and deglaze the pot with water.

• Use sweet or yellow onions, sliced thinly.

• Add a bit of sugar if the soup tastes bitter.

• Substitute wine and sherry with broth and vinegar for alcohol-free version.

• Use vegetable broth to make it vegetarian.

• Broil cheese-topped toasts separately if using non-ovenproof bowls.

Nutrition

Find it online: https://glonfo.com/classic-french-onion-soup-recipe/