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French Onion Soup

French Onion Soup

Recipe Details

Prep 20 m
Cook 75 m
Total 95 m
Serves 6
Calories 425 kcal
Level Medium

"Experience the ultimate comfort food with this deeply flavorful French Onion Soup, featuring silkily caramelized onions in a rich, herb-infused beef broth. Each bowl is crowned with a toasted baguette slice and a thick, golden layer of melted Gruyère cheese for the perfect savory finish."

1 Ingredients

Qty Item
3 pounds Yellow onions, thinly sliced
4 tbsp Unsalted butter
2 tbsp Extra virgin olive oil
0.5 cup Dry white wine (like Sauvignon Blanc)
8 cups High-quality beef stock
3 stems Fresh thyme sprigs
1 piece Bay leaf
6 slices French baguette, sliced into 1-inch rounds
2 cups Gruyère cheese, shredded
1 to taste Salt and freshly ground black pepper

2 Instructions

1

Step 1. In a large Dutch oven or heavy-bottomed pot, melt the butter and olive oil over medium heat. Add the sliced onions and stir to coat thoroughly.

2

Step 2. Cook the onions, stirring every few minutes, for about 45 to 60 minutes. The onions should become very soft and turn a deep, rich mahogany brown. If they begin to scorch, add a tablespoon of water and turn the heat down slightly.

3

Step 3. Once caramelized, pour in the white wine to deglaze the pot. Use a wooden spoon to scrape up all the flavorful brown bits (fond) from the bottom of the pot.

4

Step 4. Add the beef stock, thyme sprigs, and bay leaf. Increase the heat to bring the liquid to a gentle boil, then reduce to low and simmer partially covered for 30 minutes.

5

Step 5. While the soup simmers, preheat your oven broiler and lightly toast the baguette slices on a baking sheet until crisp.

6

Step 6. Taste the soup and season with salt and pepper as needed. Remove the thyme sprigs and the bay leaf.

7

Step 7. Ladle the hot soup into six oven-safe ramekins or bowls. Top each with a slice of toasted baguette and a generous portion of shredded Gruyère cheese.

8

Step 8. Place the bowls on a baking sheet and broil for 2-4 minutes, or until the cheese is melted, bubbly, and shows golden-brown spots. Serve immediately.


💡 Tips & Tricks

  • ·

    Patience is key: Do not rush the onions. Real caramelization takes time and is the primary source of the soup's deep flavor.

  • ·

    For extra depth, add a teaspoon of balsamic vinegar or a splash of cognac just before adding the beef stock.

  • ·

    Rub a cut clove of garlic onto the toasted baguette slices before placing them on the soup for a subtle aromatic boost.

  • ·

    Use a mix of onions, such as yellow and red, to create a more complex flavor profile.


? Frequently Asked Questions

Can I make this soup vegetarian?
Yes, substitute the beef stock with a rich mushroom broth and add a tablespoon of soy sauce for umami depth.
What is the best substitute for Gruyère cheese?
Comté, Emmental, or a high-quality Swiss cheese are excellent alternatives that melt similarly.
Can I prepare French Onion Soup in advance?
Absolutely. The soup base actually tastes better the next day. Store it in the fridge for up to 3 days, then reheat and add the bread and cheese just before serving.
Why is my soup too sweet?
Onions are naturally sugary. If it's too sweet, add a bit more salt, a splash of vinegar, or use a beef stock with lower sodium to better balance the flavors.


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