French Onion Soup Recipe

Recipe By:
Lily Hartwell

Catch the alluring aroma of sweet caramelized onions mingling with rich broth as your kitchen transforms into a cozy haven. Imagine slurping up warm, cheesy goodness that wraps around you like a blanket on a chilly evening.

French Onion Soup Bowl

This French onion soup isn’t just a dish; it’s an experience! Whether you’re hosting friends or indulging in some much-needed self-care, this cozy classic promises to elevate any occasion.

Why You'll Love This Recipe

  • This French onion soup is incredibly easy to prepare yet delivers gourmet flavor.
  • The golden-brown cheese topping creates an irresistible visual appeal.
  • Perfect for impressing guests or enjoying solo on a rainy day.
  • It also adapts beautifully to your pantry staples and preferences.

I remember the first time I made this French onion soup for my best friend’s birthday. Her eyes lit up like she’d just seen a puppy in a park.

Recipe preparation

Essential Ingredients

Here’s what you’ll need to make this delicious dish:

  • Yellow Onions: Aim for about four large onions; they turn golden and sweet when caramelized.
  • Olive Oil: Use extra virgin for the best flavor; it enhances the richness of the soup.
  • Butter: A tablespoon adds creaminess and depth; don’t skip this fat!
  • Vegetable Broth: Opt for low-sodium to maintain control over the saltiness of your soup.
  • Fresh Thyme: A few sprigs will bring aromatic earthiness; fresh is best but dried works too.
  • Baguette or Crusty Bread: For topping; choose something that’ll hold up under gooey cheese.
  • Gruyère Cheese: The star of the show! Its nutty flavor melts beautifully over your soup.
  • Salt and Pepper: Essential seasonings to enhance all those wonderful flavors; season to taste!

The full ingredients list, including measurements, is provided in the recipe card directly below.

Let’s Make it Together

Prepare Your Onions: Start by peeling and slicing the onions thinly; aim for about ¼ inch thick. This helps them cook evenly and caramelize beautifully.

Sauté Those Sweet Onions: Heat olive oil and butter in a large pot over medium heat. Add the sliced onions and stir occasionally until they turn soft and golden brown—about 30 minutes.

Add Flavorful Aromatics: Toss in fresh thyme during the last five minutes of sautéing. The aroma will take you straight to culinary heaven!

Pour in the Broth: Once the onions are perfectly caramelized, pour in vegetable broth. Bring everything to a simmer while seasoning with salt and pepper to taste.

Bake with Cheese: Ladle hot soup into oven-safe bowls, top each with sliced baguette, and generously sprinkle Gruyère cheese on top. Bake at 350°F (175°C) until bubbly—about 15 minutes.

Serve It Up! Carefully remove from the oven (they’re hot!). Let cool slightly before digging in—you deserve every cheesy bite!

This recipe is not only comforting but also versatile enough for any occasion—from casual weeknight dinners to fancy holiday gatherings. Plus, leftovers? They taste even better!

So grab your ingredients and let’s get cooking! You’ll be amazed at how simple it is to whip up this gourmet delight right from your kitchen!

You Must Know

  • French onion soup is all about layering flavors.
  • A slow caramelization of onions brings out their sweetness, creating a rich, savory base.
  • Top it with gooey cheese and crusty bread for that perfect comforting bite.

Perfecting the Cooking Process

Start by caramelizing the onions slowly; this step enhances the soup’s depth. While they cook, prep your broth and cheese to streamline assembly.

Serving and storing

Add Your Touch

Try adding a sprinkle of fresh herbs like thyme or a dash of balsamic vinegar to elevate the flavor profile. You can also swap in different cheeses for a unique twist.

Storing & Reheating

Store leftover soup in an airtight container in the fridge for up to three days. Reheat on the stove over low heat, adding more broth if it thickens too much.

Chef's Helpful Tips

  • For a richer flavor, use a mix of beef and vegetable broth.
  • Avoid rushing the onion caramelization; patience yields sweeter results.
  • Toast your bread slightly before adding it to prevent sogginess and maintain texture.

After making this French onion soup for my family, my brother claimed he could eat it every day! He even tried to sneak some into his lunchbox—talk about a compliment!

FAQs

FAQ

What’s the best type of cheese for French onion soup?

Gruyère is traditional, but you can use Swiss or mozzarella for a milder taste.

Can I make French onion soup ahead of time?

Yes, prepare the soup and store it; just add cheese and bread when ready to serve.

What type of bread works best?

A crusty baguette or sourdough adds delightful texture and flavor to your soup.

Print
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French Onion Soup Bowl

Easy French Onion Soup Recipe

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4.6 from 199 reviews

French onion soup is a warm, comforting dish featuring sweet caramelized onions in a savory broth, topped with gooey melted cheese and crusty bread for the perfect cozy meal.

  • Total Time: 1 hour
  • Yield: Serves 4

Ingredients

Scale
  • 4 large yellow onions, thinly sliced
  • 2 tablespoons olive oil
  • 1 tablespoon butter
  • 4 cups low-sodium vegetable broth
  • 3 sprigs fresh thyme
  • 1 baguette or crusty bread, sliced
  • 1 cup Gruyère cheese, shredded
  • Salt and pepper to taste

Instructions

  1. Peel and slice onions to about ¼ inch thick.
  2. Heat olive oil and butter in a large pot over medium heat. Add onions and sauté until golden brown, about 30 minutes.
  3. Add fresh thyme in the last five minutes of cooking.
  4. Pour in vegetable broth, season with salt and pepper, and bring to a simmer.
  5. Ladle soup into oven-safe bowls, top with bread slices, and sprinkle Gruyère cheese on top.
  6. Bake at 350°F (175°C) for about 15 minutes until bubbly.

Notes

  • Enhance flavor by adding a splash of balsamic vinegar or swapping cheeses.
  •  Store leftovers in an airtight container for up to three days; reheat on low heat with extra broth if needed.
  • Author: Sophie
  • Prep Time: 15 minutes
  • Cook Time: 45 minutes
  • Category: Soup
  • Method: Baking
  • Cuisine: French

Nutrition

  • Serving Size: 1 bowl (350g)
  • Calories: 350
  • Sugar: 8g
  • Sodium: 890mg
  • Fat: 15g
  • Saturated Fat: 8g
  • Unsaturated Fat: 6g
  • Trans Fat: 0g
  • Carbohydrates: 40g
  • Fiber: 4g
  • Protein: 12g
  • Cholesterol: 30mg

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