Classic French Onion Soup Recipe

Onion Soup
Are you craving a comforting and flavorful soup that will warm you up on a chilly day? Look no further than the classic French Onion Soup. This iconic dish is a beloved staple of French cuisine, known for its rich, caramelized onions, savory broth, and gooey melted cheese. In this article, patricktopping will guide you through the process of creating this delectable soup from scratch, step by step. Get ready to indulge in the irresistible flavors of this timeless recipe.

to French Onion Soup

French Onion Soup, also known as “Soupe à l’oignon gratinée,” originated in France in the 18th century and has since become a classic worldwide. This soup is characterized by its sweet and savory caramelized onions cooked to perfection and served with a crusty bread and melted cheese topping. It is a true comfort food that warms both the body and the soul.


To make a delicious pot of French Onion Soup, you will need the following ingredients:
  • 5 large onions, thinly sliced
  • 4 tablespoons of unsalted butter
  • 2 tablespoons of olive oil
  • 2 cloves of garlic, minced
  • 1 teaspoon of granulated sugar
  • 6 cups of beef broth
  • 1/2 cup of dry white wine (optional)
  • 1 bay leaf
  • 1 teaspoon of fresh thyme leaves
  • Salt and black pepper to taste
  • Baguette slices
  • Gruyère or Swiss cheese, grated

Preparing the Onions

To start, melt the butter and olive oil in a large pot over medium heat. Add the thinly sliced onions and cook them slowly, stirring occasionally, until they become soft and caramelized. This process can take up to 45 minutes to an hour. Sprinkle the sugar over the onions to help with the caramelization process. Once the onions have turned golden brown, add the minced garlic and cook for another minute.

Making the Broth

Once the onions are caramelized, it’s time to add the beef broth, white wine (if using), bay leaf, and thyme leaves to the pot. Increase the heat to bring the mixture to a boil, then reduce the heat and let it simmer for about 20 minutes. This allows the flavors to meld together, creating a delicious and aromatic broth. Season with salt and black pepper according to your taste.

Toasting the Bread

While the soup is simmering, preheat your oven to 350°F (175°C). Slice the baguette into thick rounds and place them on a baking sheet. Toast the bread in the oven until it becomes crispy and golden brown.

Assembling and Serving the Soup

Once the soup and bread are ready, it’s time to assemble the French Onion Soup. Ladle the hot soup into oven-safe bowls or crocks, leaving some space at the top. Place a few slices of toasted baguette on top of the soup, making sure they float on the surface. Sprinkle a generous amount of grated Gruyère or Swiss cheese over the bread slices, covering them completely.

Variations and Tips

  • Vegetarian Option: Replace the beef broth with vegetable broth to make a vegetarian version of French Onion Soup.
  • Cheese Variations: While Gruyère and Swiss cheese are traditionally used, you can experiment with other types of cheese like Mozzarella or Provolone for a unique twist.
  • Wine Substitute: If you prefer not to use wine, you can substitute it with additional beef broth.

Frequently Asked Questions (FAQs)

Q1: Can I make French Onion Soup ahead of time? Yes, French Onion Soup can be made ahead of time. Prepare the soup, assemble it with the bread and cheese, and refrigerate. When ready to serve, reheat the soup in the oven until the cheese is melted and bubbly. Q2: Can I freeze French Onion Soup? While it is possible to freeze French Onion Soup, it is best to freeze the soup without the bread and cheese topping. When reheating, add fresh toasted bread and cheese. Q3: What should I serve with French Onion Soup? French Onion Soup pairs well with a side salad, such as a classic Caesar salad or a simple green salad with vinaigrette dressing. Q4: Can I use red onions instead of yellow onions? Yellow onions are traditionally used for French Onion Soup due to their mild and sweet flavor when caramelized. However, you can experiment with red onions if you prefer a stronger taste. Q5: How can I prevent the cheese from sticking to the bowl? To prevent the cheese from sticking to the bowl, make sure the cheese covers the bread completely, creating a seal that prevents direct contact with the bowl.

Can I Add High-Protein Ingredients to French Onion Soup for a More Nutritious Breakfast Option?

Looking for high-protein breakfast ideas? Consider revamping your morning routine with a nutritious twist – adding high-protein ingredients to French Onion Soup. By incorporating protein-rich elements like lean meats or legumes, you can transform this classic soup into a hearty and nourishing breakfast option to kick-start your day.


In conclusion, French Onion Soup is a timeless classic that satisfies both the taste buds and the soul. With its rich and savory flavors, caramelized onions, and gooey melted cheese, it’s no wonder this soup has become a favorite worldwide. By following the steps outlined in this article, you can easily create a bowl of this comforting soup in your own kitchen. So go ahead and indulge in the deliciousness of a homemade Classic French Onion Soup.

Patrick Mills
Hi there, my name is Patrick and I'm the creator behind this general blog. I started this blog as a way to share my thoughts, ideas, and interests with the world. I love to write about a wide range of topics, from technology and science to lifestyle and travel. As a curious and adventurous person, I'm always seeking out new experiences and learning opportunities. My blog reflects this sense of exploration, as I'm constantly trying new things and sharing my insights and opinions with my readers.