Why You’ll Love This Recipe

French Onion Soup is a rich and savory classic, featuring deeply caramelized onions simmered in a flavorful beef broth, topped with toasted bread and melted cheese. Its comforting aroma and elegant presentation make it a favorite for cozy nights or special dinners alike. This timeless soup brings together simple ingredients in a way that delivers deep, complex flavors with every spoonful.

ingredients

(Tip: You’ll find the full list of ingredients and measurements in the recipe card below.)

yellow onionsbutterolive oilbeef brothdry white winesaltblack pepperbay leavesthymegarlicbaguette slicesgruyère cheese (or Swiss cheese)

directions

Slice the onions thinly and set aside.

In a large pot, heat butter and olive oil over medium heat.

Add the onions and cook slowly, stirring often, until they are deeply caramelized—about 40-45 minutes.

Add minced garlic, salt, pepper, thyme, and bay leaf. Cook for another minute.

Pour in the white wine and deglaze the pot, scraping any browned bits from the bottom.

Add the beef broth and bring to a simmer. Cook for another 20-30 minutes.

While the soup simmers, toast the baguette slices until golden and crisp.

Ladle the soup into oven-safe bowls, place a toasted baguette slice on top of each, and generously sprinkle with shredded cheese.

Broil until the cheese is melted and bubbly.

Serve hot, carefully.

Servings and timing

This recipe yields approximately 4 servings.Preparation time: 15 minutesCaramelizing time: 45 minutesSimmering time: 30 minutesTotal time: 1 hour 30 minutes

Variations

Use chicken or vegetable broth for a lighter version.

Add a splash of brandy or sherry for deeper flavor.

Try different cheeses like provolone or fontina for a twist.

Make it vegetarian by using mushroom broth and omitting meat-based stock.

Top with multiple slices of bread and extra cheese for a heartier portion.

storage/reheating

Store leftover soup (without bread and cheese) in an airtight container in the fridge for up to 4 days.Reheat gently on the stove over medium heat, then assemble with fresh bread and cheese before broiling.Freeze the soup base for up to 2 months, but add fresh toppings when serving.

FAQs

What type of onions are best?

Yellow onions are preferred for their balanced sweetness when caramelized.

Can I skip the wine?

Yes, but it adds a depth of flavor. Substitute with extra broth if needed.

How do I prevent the onions from burning?

Cook them low and slow, stirring frequently to avoid burning.

What’s the best bread for topping?

A crusty baguette works best for soaking up the broth without falling apart.

Can I use pre-shredded cheese?

Yes, but freshly grated cheese melts more smoothly.

Is this soup gluten-free?

It can be if you use gluten-free bread or omit the bread altogether.

Can I prepare it in advance?

Yes, make the soup ahead and broil with cheese just before serving.

Can I use red wine instead?

White wine is traditional, but dry red wine can be used for a richer taste.

Is this a main dish or appetizer?

It can be served as either, depending on portion size.

What can I serve with it?

A light green salad or roasted vegetables pair well.

Conclusion

French Onion Soup is a comforting, elegant dish that transforms humble ingredients into something truly special. Perfect for a cold evening or a dinner party starter, it brings warmth and flavor in every bite. With its golden cheese topping and deep, caramelized taste, this soup is sure to be a favorite you’ll return to again and again.