Easy French Onion Soup with Melted Cheese Recipe

If you’re craving something cozy, indulgent, and downright irresistible, you’ve got to try this Easy French Onion Soup with Melted Cheese Recipe. I absolutely love how this classic transforms simple ingredients into a bowl of pure comfort topped with that bubbly, golden cheese—there’s nothing quite like it. When I first made this soup, I was hooked instantly, and I promise you’ll find it just as satisfying and surprisingly easy to master at home.

❤️

Why You’ll Love This Recipe

  • Rich Caramelized Flavor: Slow-cooking the onions brings out a deep, sweet taste that’s the heart and soul of this soup.
  • Cheesy Melted Perfection: The broiled Gruyere on top creates that irresistible, gooey crust everyone will rave about.
  • Simple Ingredients, Big Impact: You don’t need fancy stuff, just pantry staples done the right way for maximum flavor.
  • Perfect for Any Occasion: Whether it’s a chilly weeknight or a dinner party starter, this recipe fits seamlessly.

Ingredients You’ll Need

All these ingredients work beautifully together to create that iconic French onion soup taste you know and love. Choosing the right onions and a good quality broth really makes a difference here, so take your time picking those.

Flat lay of thinly sliced yellow onions in a simple white ceramic bowl, two tablespoons of butter on a small white ceramic dish, a few tablespoons of olive oil in a small white ceramic bowl, six fresh thyme sprigs arranged neatly, one fresh bay leaf, a small white ceramic bowl filled with white wine, a white ceramic bowl holding rich beef broth, four slices of toasted baguette on a plain white ceramic plate, a heap of grated Gruyere cheese on a white ceramic dish, salt and pepper sprinkled artfully beside small white ceramic bowls containing each seasoning, all placed on a clean white marble surface, soft natural light, photo taken with an iPhone, professional food photography style, fresh ingredients, white ceramic bowls, no bottles, no duplicates, no utensils, no packaging --ar 2:3 --v 7 --p m7354615311229779997 - Easy French Onion Soup with Melted Cheese, French Onion Soup recipe, cheesy onion soup, caramelized onion soup, homemade French onion soup
  • Onions: Yellow onions are my favorite for their balance of sweetness and pungency, but mixing in red and white can add some lovely complexity.
  • Butter: Adds richness and helps caramelize the onions perfectly without burning.
  • Olive Oil: Works with the butter to cook the onions evenly and prevent sticking.
  • Fresh Thyme: The fresh herb smell really elevates the flavor profile—don’t skip it!
  • Bay Leaf: Adds subtle earthiness that rounds out the soup.
  • White Wine: I love the little acidity it brings; it brightens the rich onions beautifully. If you prefer no alcohol, beef broth with a splash of vinegar works well.
  • Beef Broth: High quality and flavorful broth is key since it’s the base of the soup.
  • Baguette: Toasted slices soak up the soup just right without turning mushy too fast.
  • Gruyere Cheese: My top choice for its melty and nutty character, but Swiss or Emmental works too.
  • Salt and Pepper: Essential for seasoning and balancing all those flavors.
📝
Note: You’ll find the complete list of ingredients, along with their exact measurements, in the printable recipe card at the bottom of this post.

Variations

I like to play around with this Easy French Onion Soup with Melted Cheese Recipe depending on the season or what’s in my fridge. Feel free to tweak it and make it your own—cooking is all about making food that delights your senses.

  • Mushroom Twist: Adding sautéed mushrooms with the onions gives the soup a nice earthy depth—I tried this last fall and my guests loved it.
  • Vegetarian Version: Simply substitute vegetable broth for beef stock, and it’s still comforting and rich.
  • Cheese Mix: Sometimes, I blend Gruyere with a bit of fontina or mozzarella for extra gooeyness and mildness.
  • Whiskey Swap: Instead of white wine, use a splash of whiskey for a deeper, smokier flavor—I discovered this one on a cold winter night and it was fantastic.

How to Make Easy French Onion Soup with Melted Cheese Recipe

Step 1: Caramelize the Onions to Sweet Perfection

Start by heating the butter and olive oil gently in a large, deep skillet. Add your thinly sliced onions along with fresh thyme and the bay leaf. This is where patience pays off: keep the heat low and stir every 10 minutes so they don’t stick or burn. You’re aiming for a deep golden brown, almost jammy texture, which can take up to 45 minutes. I usually put on a podcast or chat with a friend while I stir—it makes the time fly! Don’t forget to sprinkle in a teaspoon of salt early on to help draw out moisture and enhance flavor.

Step 2: Deglaze and Simmer for That Gorgeously Complex Broth

Once your onions have that perfect caramel color, splash in the white wine. Turn the heat up a bit and let it bubble so the alcohol evaporates and all those rich browned bits on the pan lift off and blend into your soup. Then pour in your beef broth and bring everything back to a boil. Drop the heat and let the soup gently simmer while you get your oven ready for broiling. This slow simmer is where those flavors really marry beautifully.

Step 3: Assemble, Top, and Broil for the Ultimate Melted Cheese Experience

Ladle your soup into oven-safe bowls—this is important unless you want to clean up melted cheese messes later! Place a toasted baguette slice on top of each bowl and load on a generous pile of that shredded Gruyere. The cheese is the crowning glory here, so don’t be shy. Pop the bowls under your preheated broiler for 3–5 minutes, but watch carefully so the cheese bubbles up golden and delicious without burning. This is when your kitchen will start smelling like a cozy French bistro.

Step 4: Garnish and Serve Immediately

Once you’ve got that perfectly bubbly cheese, pull the bowls out and add a few fresh thyme leaves on top for a lovely herbal note and a pop of green. I like to bring this straight to the table while it’s hot and gooey—you’ll want to dive right in!

👨‍🍳

Pro Tips for Making Easy French Onion Soup with Melted Cheese Recipe

  • Low and Slow Caramelization: Don’t rush your onions—slow cooking brings out unmatched sweetness and umami.
  • Watch the Broiler Closely: Cheese can go from golden to burnt in seconds, so stay near and keep an eye on the bowls.
  • Use Quality Broth: The broth is the foundation; using homemade or a good store-bought beef broth makes a big difference.
  • Toast Your Bread Well: Crisp baguette slices hold up better under the soup and cheese, preventing sogginess.

How to Serve Easy French Onion Soup with Melted Cheese Recipe

A shiny copper pot with two handles holds a thick, creamy soup or stew that is light golden in color with a slightly lumpy texture. A spoon is scooping the soup from the pot, with a drip falling back into it. The soup appears rich and warm, with some darker brown crispy edges visible inside the pot. A woman's hand is holding the spoon on the right side of the image. The background is blurred and dark, making the pot and soup stand out clearly on a white marbled surface. photo taken with an iphone --ar 2:3 --v 7 - Easy French Onion Soup with Melted Cheese, French Onion Soup recipe, cheesy onion soup, caramelized onion soup, homemade French onion soup

Garnishes

I’m a fan of a few fresh thyme leaves on top after broiling—it adds that fresh herbal lift. Sometimes I sprinkle a bit of cracked black pepper or even a light drizzle of truffle oil if I’m feeling fancy. A little fresh parsley works well too if thyme isn’t your thing.

Side Dishes

This soup is pretty filling, but when I want to round out the meal, I love simple green salads with a tangy vinaigrette or roasted root vegetables. A crisp apple and fennel slaw complements the richness beautifully too.

Creative Ways to Present

For special occasions, I’ve served this soup in mini cast iron cocottes—so charming and rustic. You can garnish with edible flowers or fresh herbs and place the bowls on wooden boards with a baguette for that extra touch that impresses guests.

Make Ahead and Storage

Storing Leftovers

I store leftover soup in airtight containers in the fridge without the bread and cheese on top, as those are best fresh. The soup keeps well for about 3-4 days, and I love that the flavor improves overnight.

Freezing

I’ve frozen batches of this soup (again, without bread and cheese) in freezer-safe containers. When thawed, it reheats beautifully on the stovetop, almost like freshly made. Just add fresh baguette and cheese when serving.

Reheating

Reheat the soup gently on the stove, stirring occasionally. Then re-toast your baguette slices and broil cheese separately just before serving to maintain that delicious melted top.

FAQs

  1. Can I make Easy French Onion Soup with Melted Cheese Recipe vegetarian?

    Absolutely! Just swap the beef broth for a rich vegetable broth. To deepen the flavor, you can add a splash of soy sauce or miso paste while simmering.

  2. What’s the best cheese to use for French onion soup?

    Gruyere is traditional because it melts well and has a slightly nutty, creamy flavor. But Swiss, Emmental, or even a mix with mozzarella will give you a lovely cheese topping.

  3. How long does it take to caramelize onions for this soup?

    It usually takes about 45 minutes on low heat, stirring regularly to avoid burning. The slow cooking is key to developing that deep, rich flavor.

  4. Can I prep this soup ahead of time?

    Yes! You can caramelize the onions and make the soup base a day ahead. Just store it in the fridge, then reheat and add your bread and cheese right before serving.

Final Thoughts

This Easy French Onion Soup with Melted Cheese Recipe holds a special place in my heart because it turns humble ingredients into restaurant-quality comfort food without fuss. I remember my first time making it for my family—we all sat around the table with cheesy grins and empty bowls. I hope when you try this, you get that same warm, happy feeling with every scoop. So go ahead, give it a shot, and savor every delicious, cheesy bite!

Print
clock clock iconcutlery cutlery iconflag flag iconfolder folder iconinstagram instagram iconpinterest pinterest iconfacebook facebook iconprint print iconsquares squares iconheart heart iconheart solid heart solid icon
Easy French Onion Soup with Melted Cheese Recipe

Easy French Onion Soup with Melted Cheese Recipe

5 Stars 4 Stars 3 Stars 2 Stars 1 Star 4.4 from 111 reviews
  • Author: Emily
  • Prep Time: 15 minutes
  • Cook Time: 1 hour 30 minutes
  • Total Time: 1 hour 45 minutes
  • Yield: 4 servings 1x
  • Category: Soup
  • Method: Stovetop
  • Cuisine: French

Description

This Easy French Onion Soup recipe delivers a rich, deeply flavorful classic French comfort food with caramelized onions, savory beef broth, crusty toasted baguette, and a gooey melted Gruyere cheese topping. Perfect for a cozy meal, it’s simple to make and guaranteed to impress with its authentic taste.


Ingredients

Scale

Soup Base

  • 6 cups thinly sliced onions
  • 2 tablespoons butter
  • 2 tablespoons olive oil
  • 6 sprigs fresh thyme
  • 1 bay leaf
  • ½ cup white wine
  • 4 cups high-quality beef broth
  • Salt and pepper to taste

Toppings

  • 4 slices baguette, toasted
  • 1 ½ cups grated Gruyere or similar cheese


Instructions

  1. Caramelize the Onions: In a large skillet with high sides, heat the butter and olive oil over medium heat. Add the thinly sliced onions, fresh thyme leaves (removed from the sprigs), and bay leaf. Cook the onions slowly on low heat, stirring every 10 minutes to prevent sticking, until they turn deeply golden and caramelized. This process takes about 45 minutes and is crucial for developing the soup’s deep, sweet flavor. Add a teaspoon of salt during cooking.
  2. Deglaze and Simmer: Once the onions are richly caramelized, pour in the white wine to deglaze the pan, scraping up all the flavorful browned bits. Increase the heat to bring the mixture to a boil so the alcohol evaporates. Then add the beef broth and bring the soup back to a boil. Reduce heat to low and simmer gently while you preheat your broiler. Taste the soup and season with salt and pepper as needed.
  3. Prepare for Broiling: Ladle the hot soup evenly into four oven-safe bowls. Place a toasted slice of baguette on top of each bowl. Generously sprinkle the grated Gruyere cheese over each baguette slice, covering them well to ensure a cheesy crust after broiling.
  4. Broil the Soup: Position the bowls under your oven broiler. Broil for about 3 to 5 minutes or until the cheese is melted, golden, and bubbly. Watch closely to prevent burning the cheese.
  5. Garnish and Serve: Optionally garnish each bowl with fresh thyme leaves for aroma and a fresh finish. Serve immediately to enjoy the deliciously warm and comforting soup at its best.

Notes

  • Onion Choice: Yellow onions are traditional, but mixing yellow, white, and red onions adds extra complexity to the flavor.
  • Wine Substitute: If you prefer not to use wine, substitute it with an equal amount of beef broth mixed with a splash of vinegar for acidity.
  • Cheese Options: Gruyere is classic, but Swiss, Emmental, or a blend of cheeses can be used for a unique twist.
  • Broiler Tip: Always monitor the soup closely under the broiler to avoid burning the cheese topping.

Nutrition

  • Serving Size: 1 serving (1 bowl)
  • Calories: 350 kcal
  • Sugar: 9 g
  • Sodium: 850 mg
  • Fat: 18 g
  • Saturated Fat: 10 g
  • Unsaturated Fat: 6 g
  • Trans Fat: 0.2 g
  • Carbohydrates: 30 g
  • Fiber: 3 g
  • Protein: 15 g
  • Cholesterol: 50 mg

Leave a Comment & Rate this Recipe!

If you love this recipe, please consider giving it a star rating when you leave a comment. Star ratings help people discover my recipes online. Your support means a lot to me, I appreciate you.

Recipe rating 5 Stars 4 Stars 3 Stars 2 Stars 1 Star

Your email address will not be published. Required fields are marked *