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A bowl of golden French onion soup with a bubbly, melted cheese topping and a slice of toasted French bread.
Emily Carter

Classic French Onion Soup (No Wine)

Enjoy a rich and savory French onion soup without wine, made budget-friendly with simple ingredients.
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Prep Time 15 minutes
Cook Time 45 minutes
Total Time 1 hour
Servings: 4 servings
Course: Soup
Cuisine: French
Calories: 380
Ingredients Equipment Method Notes

Ingredients
  

For the Soup
  • 3 tablespoons unsalted butter
  • 2 pounds yellow onions thinly sliced
  • 8 cups beef broth made from bouillon or concentrate
  • 2 teaspoons dried thyme
  • ½ teaspoon black pepper freshly ground
  • ¼ teaspoon salt or to taste
For Serving
  • 4 slices French bread 1-inch thick
  • 4 tablespoons shredded Gruyere cheese
  • 2 tablespoons grated Swiss cheese

Equipment

  • 1 Large Skillet
  • 1 medium saucepan
  • 1 baking sheet
  • 4 Oven-safe soup bowls

Method
 

  1. Melt the unsalted butter in a large skillet over medium-low heat.
  2. Add the thinly sliced yellow onions and cook, stirring occasionally, for 8-10 minutes until they are transparent and softened.
  3. Continue cooking the onions on low heat, stirring occasionally, for another 20-25 minutes, until they are deeply caramelized and golden brown.
  4. While the onions caramelize, combine the beef broth, caramelized onions, dried thyme, black pepper, and salt in a medium saucepan.
  5. Bring the mixture to a boil over medium-high heat, then reduce the heat to low, cover the saucepan, and let it simmer gently for 30 minutes to allow the flavors to meld.
  6. Preheat your oven broiler and place the French bread slices on a baking sheet.
  7. Broil the bread for 1-2 minutes per side, watching carefully, until golden brown and crispy.
  8. Carefully ladle the hot French onion soup into four individual oven-safe soup bowls.
  9. Float one slice of toasted French bread on top of the soup in each bowl.
  10. Evenly sprinkle the shredded Gruyere cheese and grated Swiss cheese over the bread and soup in each bowl.
  11. Return the bowls to the broiler for 2-4 minutes, or until the cheese is melted, bubbly, and lightly golden brown.
  12. Serve immediately and enjoy your classic French onion soup.

Notes

For the best flavor, do not rush the onion caramelization; low and slow heat is key.
To make this soup vegetarian, use vegetable bouillon instead of beef. For a vegan version, also swap butter for olive oil and omit cheese or use vegan alternatives.
The soup base can be made ahead and refrigerated for up to 3-4 days, or frozen for up to 3 months. Always add fresh toasted bread and cheese just before serving.