Name: Hearty French Onion Soup with Gruyère Croutons
Prep time: 20 min
Cook time: 75 min
Total time: 95 min
Yield: 6 servings
Cuisine: French
Ingredients: 5 large Yellow Onions, thinly sliced; 4 tbsp Unsalted Butter; 2 tbsp Extra Virgin Olive Oil; 0.5 cup Dry Sherry or Brandy; 8 cups High Quality Beef Stock; 4 stems Fresh Thyme Sprigs; 1 whole Bay Leaf; 12 slices French Baguette, sliced; 2 cups Gruyère Cheese, shredded; 2 cloves Garlic Cloves, halved

"This soul-warming French Onion Soup features onions caramelized to a deep mahogany, simmered in a rich, herb-infused beef broth. Each bowl is crowned with crusty toasted baguette slices and a thick, bubbling layer of nutty Gruyère cheese for the ultimate gourmet comfort experience."

Ingredients

Qty	Item
5 large 1.5 kg	Yellow Onions, thinly sliced
4 tbsp 56 g	Unsalted Butter
2 tbsp 30 ml	Extra Virgin Olive Oil
0.5 cup 120 ml	Dry Sherry or Brandy
8 cups 1.9 l	High Quality Beef Stock
4 stems 4 stems	Fresh Thyme Sprigs
1 whole 1 whole	Bay Leaf
12 slices 1 loaf	French Baguette, sliced
2 cups 200 g	Gruyère Cheese, shredded
2 cloves 2 cloves	Garlic Cloves, halved

How to Make Hearty French Onion Soup with Gruyère Croutons

Melt the butter and olive oil in a large Dutch oven over medium-low heat. Add the sliced onions and a pinch of salt. Cook, stirring occasionally, for 45–50 minutes until the onions are soft and a deep, rich brown color.

Deglaze the pot by adding the dry sherry, scraping up the browned bits (fond) from the bottom of the pan with a wooden spoon.

Pour in the beef stock and add the thyme sprigs and bay leaf. Increase the heat to bring to a boil, then reduce to low and simmer for 20 minutes to meld flavors.

While the soup simmers, preheat the oven to 400°F (200°C). Toast the baguette slices on a baking sheet for 5 minutes until crisp. Rub the toasted bread with the cut side of the garlic cloves.

Remove the thyme and bay leaf from the soup. Ladle the hot soup into six oven-safe bowls.

Top each bowl with two slices of toasted baguette and a generous amount of shredded Gruyère cheese.

Place the bowls on a baking sheet and broil for 3–5 minutes until the cheese is melted, golden-brown, and bubbling. Serve immediately.

·
Patience is key: Caramelizing the onions slowly is what creates the deep, sweet base of the soup.
·
Use a mix of onions—such as yellow, red, and Vidalia—for a more complex flavor profile.
·
For extra richness, add a tablespoon of balsamic vinegar or Worcestershire sauce at the end of the simmering process.
·
Always use a high-quality, low-sodium beef stock so you can control the salt level yourself.

Frequently Asked Questions

Can I make this soup ahead of time?

Yes, the onion soup base can be made up to 3 days in advance. Simply reheat and add the toast and cheese just before serving.

What if I don't have oven-safe bowls?

You can melt the cheese on the baguette slices on a baking sheet in the oven, then place the finished cheesy croutons on top of the ladled soup.

Is there a non-alcoholic substitute for the sherry?

You can substitute the sherry with an equal amount of additional beef broth and a teaspoon of apple cider vinegar.

Which cheese is best if I can't find Gruyère?

Comté, Emmental, or even a high-quality Swiss cheese are excellent substitutes due to their melting capabilities and nutty flavor.

Video Tutorials

French Onion Soup with Garlic Croutons & Gruyere | Cooking With The Kems

How to Make French Onion Soup | Get Cookin’ | Allrecipes.com

The Best French Onion Soup

How to Make Martha Stewart's French Onion Soup | Martha's Cooking School | Martha Stewart

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