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Easily Indulgent: Simple French Onion Soup You’ll Crave

Published: Jun 30, 2025 by Rauz Karoline · This post may contain affiliate links · Leave a Comment

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There’s something magical about the aroma of onions slowly caramelizing in a warm kitchen. It evokes a sense of comfort that speaks to our hearts, and it’s the very first step in creating my Simple French Onion Soup. This recipe transforms humble ingredients into a classic French dish that feels utterly delightful, no matter the occasion. What I love most about this soup is its ability to impress while being entirely approachable; you don’t have to be a professional chef to master this comforting bowl of goodness!

With just a handful of ingredients like caramelized onions, savory beef broth, and a trio of cheese, you’ll whip up a restaurant-quality soup in under an hour. Plus, it’s freezer-friendly, so you can savor the cozy flavors anytime you crave a hearty meal. Imagine spooning into that rich, gooey goodness, topped with melted cheese and crispy bread—it’s pure bliss! Are you ready to warm your spirit with this comforting classic? Let’s dive into the delicious details!

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Why is Simple French Onion Soup a Must-Try?

Comforting, aromatic flavors: The magical scent of caramelizing onions fills your kitchen and sets the perfect mood.
Easy to make: With just a few simple ingredients, you don’t need to be a chef to create this masterpiece.
Restaurant-quality at home: Impress your family and friends with a soup that tastes like it's straight from a French bistro!
Versatile variations: Customize with different cheeses or broth options to fit your taste preferences.
Make-ahead convenience: This soup freezes beautifully, ensuring you have a comforting meal ready whenever you desire.
Try serving it alongside a delicious French Onion Soup recipe for a wonderful pairing that elevates the meal!

Simple French Onion Soup Ingredients

• Prepare to dive into deliciousness with these key components for Simple French Onion Soup!

For the Soup

  • Unsalted Butter – Provides a rich foundation for caramelizing onions without overpowering flavors.
  • Olive Oil – Combines with butter to aid in the caramelization process and prevent burning.
  • Sliced Onions – The star of the show; yellow onions are classic, but feel free to experiment with red or white for a different flavor profile.
  • Beef Broth – Serves as the hearty base for your soup, bringing depth and richness.
  • Dry Sherry – Adds a lovely complexity; you can swap it out for red merlot if preferred.
  • Dried Thyme – An aromatic herb that enhances the soup's overall fragrance and flavor.
  • Salt and Pepper – Essential seasonings; adjust to taste for the best balance.

For the Topping

  • French Bread – Use thick slices to create a perfect crunchy layer that supports the bubbly cheese.
  • Provolone Cheese – Offers a creamy, melt-in-your-mouth texture that complements the broth beautifully.
  • Swiss Cheese (diced) – Adds a nutty flavor and great meltability.
  • Grated Parmesan Cheese – Incorporates a savory, salty note that ties all the flavors together.

Dive in and prepare to impress with this delightful, aromatic soup!

Step-by-Step Instructions for Simple French Onion Soup

Step 1
Begin by melting unsalted butter and olive oil in a large stock pot over medium heat. As the butter melts, allow it to blend beautifully with the olive oil, which will help prevent burning. This combination will create the perfect base for your caramelized onions. Once melted, take a moment to inhale the delightful aromas, as your kitchen starts to fill with warmth and flavor.

Step 2
Next, add the sliced onions to the pot and stir gently until they become tender and translucent. This step is crucial; it usually takes about 10-15 minutes. Avoid browning the onions at this stage; instead, your goal is to coax out their natural sweetness. Stir them occasionally to ensure they cook evenly and don’t stick to the bottom of the pot. The transformation from firm slices to soft, fragrant onions is truly magical!

Step 3
Once your onions are tender, it’s time to build flavor. Pour in the beef broth, along with dry sherry, dried thyme, salt, and pepper. Give everything a good stir to combine the ingredients well. Bring the mixture to a gentle simmer and let it cook for about 30 minutes. This long, slow simmer allows the flavors to mingle and deepen, creating a rich and savory base for your Simple French Onion Soup.

Step 4
As your soup simmers, preheat your oven's broiler. This step is essential for browning the cheesy topping later on. A broiler heats up quickly, so keep an eye on it to ensure it’s ready when you finish the soup. This preheating will help achieve that irresistible bubbly, golden layer of cheese that makes French onion soup so delightful.

Step 5
With the soup ready, it’s time to serve! Ladle the hot soup into oven-safe bowls, ensuring each bowl gets a substantial amount of onions and broth. Take thick slices of French bread and place them on top of the soup, creating a sturdy platform for the toppings. Next, generously sprinkle provolone, diced Swiss, and grated Parmesan cheese over the bread. This cheesy layer promises a melty delight that complements the soup perfectly.

Step 6
Now, place the bowls under the preheated broiler for about 2-3 minutes. Keep a close watch as the cheese melts and bubbles, transforming into a glorious golden crust. The contrasting textures of the gooey cheese and crunchy bread will elevate your Simple French Onion Soup to the next level of indulgence.

Step 7
Carefully remove the bowls from the oven and allow them to cool slightly. Serve your hot Simple French Onion Soup right away, inviting everyone to dig into the comforting goodness. The blend of rich flavors, hearty broth, and warm, bubbly cheese will surely leave a lasting impression on everyone around your table. Enjoy every spoonful of this cozy classic!

Make Ahead Options

These Simple French Onion Soup preparations are perfect for busy home cooks looking to save time. You can caramelize the onions and prepare the broth up to 3 days in advance, storing them in an airtight container in the refrigerator. To maintain the soup's rich flavor, be sure to refrigerate it right after cooling. When it’s time to serve, simply reheat the broth and onions over medium heat until steaming. Fill oven-safe bowls, add the bread and cheese, and broil for 2-3 minutes until bubbly and golden. This strategy ensures that your soup remains just as delicious and satisfying, making your meal planning effortless!

Expert Tips for Simple French Onion Soup

  • Stir Consistently: Ensure your onions caramelize evenly by stirring frequently to prevent them from browning too quickly. This helps develop their natural sweetness for a perfect soup.

  • Choose Your Cheese: Feel free to experiment with various cheeses like Gruyère or Fontina instead of the classic blend. Each cheese adds a unique flavor profile to your Simple French Onion Soup.

  • Simmer for Depth: Let your soup simmer for a full 30 minutes to allow the flavors to meld beautifully. Patience is key for achieving a rich, complex taste.

  • Watch the Broiler: When broiling, keep a watchful eye as the cheese can go from beautifully browned to burned quickly. Aim for that golden bubbly perfection.

  • Serving Size Matters: Use oven-safe bowls but don’t overfill them; this helps with even cooking and prevents spills when you place them under the broiler.

  • Stored Soup Tips: If you plan to save some for later, remember to freeze the soup without croutons. This helps maintain the texture and quality when reheating.

What to Serve with Simple French Onion Soup?

Cozy up your meal with delightful pairings that enhance the rich, caramelized flavors of your soup.

  • Crispy Baguette: Perfect for dipping, a warm baguette adds a crunchy texture that contrasts beautifully with the gooey cheese on top of the soup.

  • Mixed Greens Salad: A light salad with a tangy vinaigrette creates a refreshing balance to the rich soup, making each bite more enjoyable.

  • Roasted Brussels Sprouts: Their nutty flavors and crispy edges harmonize wonderfully with the savory notes of the soup, creating a delightful flavor duo.

  • Garlic Butter Shrimp: Savory and succulent, the buttery goodness of garlic shrimp complements the flavors of French onion soup and adds a protein option.

  • Red Wine: A glass of bold red wine elevates the overall dining experience, echoing the deep flavors of beef broth and sherry found in your cozy bowl.

  • Chocolate Fondue: For dessert, a rich chocolate fondue with fresh fruits creates a sweet, indulgent finish that perfectly contrasts the savory soup, leaving your guests completely enchanted.

Simple French Onion Soup Variations

Feel free to explore these delicious twists to make this comforting recipe your own!

  • Cheese Swaps: Use Gruyère, Fontina, or mozzarella for a unique flavor instead of the suggested cheeses. Each cheese brings its own character and richness to the soup.

  • Wine Alternatives: Substitute the dry sherry with a robust red merlot to deepen the flavor. The fruity notes of the wine will add a joyful complexity while remaining true to the heart of the soup.

  • Herb Enhancements: Fresh thyme or rosemary can be used instead of dried thyme. Fresh herbs impart a vibrant flavor and aromatic freshness that's hard to resist.

  • Vegan Version: Replace beef broth with vegetable broth and use coconut oil instead of butter for a vegan-friendly twist. The soup will still be aromatic and satisfying without animal products.

  • Spice it Up: For a kick, add a pinch of red pepper flakes to the pot while simmering. This adds a delightful layer of heat that pairs surprisingly well with the richness of the soup.

  • Sweet Touch: A splash of balsamic vinegar can be added at the end of cooking for a sweet and tangy note. This unexpected addition elevates the soup by contrasting with the savory depth.

  • Texture Variation: Mix in some cooked lentils or beans for added protein and a heartier texture. This twist makes the soup more filling, perfect for a satisfying meal.

  • Garnish Options: Top with fresh chopped parsley or chives for a pop of color and freshness. The herbs not only enhance the appearance but also brighten the flavors as you dig in.

How to Store and Freeze Simple French Onion Soup

Fridge: Store your cooled Simple French Onion Soup in an airtight container for up to 3-4 days. Avoid adding croutons until you’re ready to serve to maintain their crunch.

Freezer: For longer storage, freeze the soup without croutons for up to 3 months. Ensure it’s in an airtight container to prevent freezer burn.

Thawing: To enjoy your frozen soup, thaw it in the fridge overnight or use a quick method by placing the container under cool water.

Reheating: Reheat on the stove over low heat, stirring occasionally, until warmed through. Add fresh croutons and cheese before broiling for that delightful final touch!

Simple French Onion Soup Recipe FAQs

What is the secret to good French onion soup?
Absolutely! The secret lies in the slow caramelization of the onions. This process transforms their natural sugars, creating a deep, rich flavor. Be patient; it usually takes about 10-15 minutes on medium heat. Continuously stirring prevents burning and enhances sweetness.

How do you store leftover French onion soup?
After cooling the soup, store it in an airtight container for up to 3-4 days in the fridge. To keep the croutons crunchy, avoid adding them until serving. This way, you can enjoy the perfect textural contrast when you reheat it!

Can I freeze French onion soup?
Yes, you can freeze Simple French Onion Soup for up to 3 months. Ensure it’s stored in an airtight container without croutons. When you’re ready to enjoy, thaw it overnight in the fridge or under cool water, then reheat on the stove, adding fresh toppings afterward.

What’s the best alcohol to use in French onion soup?
I recommend dry sherry for its depth and complexity, but red merlot is a fantastic substitute if you prefer! Both options will enrich the overall flavor of your soup. Just avoid overly sweet varieties, as you'll want to maintain that savory balance.

How do I deepen the flavor of French onion soup?
For a more robust flavor, try using beef broth instead of a stock, as it enhances the savory notes. You can also incorporate a splash of balsamic vinegar or a hint of Worcestershire sauce to add extra layers of complexity. Another tip is to let the soup simmer for that full 30 minutes; the longer it cooks, the better the flavors meld together.

Can I use different types of onions for French onion soup?
Absolutely! While yellow onions are traditional, red or white onions can provide a slightly different sweetness and flavor profile. Feel free to mix them up for a unique twist! Just remember to adjust your cooking time accordingly if these onions take longer to caramelize.

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Easily Indulgent: Simple French Onion Soup You’ll Crave

Simple French Onion Soup
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A comforting and aromatic Simple French Onion Soup recipe that transforms humble ingredients into a delightful dish.

  • Author: Rauz Karoline
  • Prep Time: 15 minutes
  • Cook Time: 45 minutes
  • Total Time: 1 hour
  • Yield: 4 servings 1x
  • Category: Soup
  • Method: Stovetop
  • Cuisine: French
  • Diet: Vegetarian

Ingredients

Scale
  • 4 tablespoons unsalted butter
  • 2 tablespoons olive oil
  • 4 cups sliced onions
  • 8 cups beef broth
  • ½ cup dry sherry
  • 1 teaspoon dried thyme
  • Salt and Pepper to taste
  • 4 slices French bread
  • 1 cup provolone cheese
  • 1 cup Swiss cheese (diced)
  • ½ cup grated Parmesan cheese

Instructions

  1. Begin by melting unsalted butter and olive oil in a large stock pot over medium heat.
  2. Add the sliced onions to the pot and stir gently until they become tender and translucent, about 10-15 minutes.
  3. Pour in the beef broth, along with dry sherry, dried thyme, salt, and pepper. Stir to combine and let it simmer for about 30 minutes.
  4. Preheat your oven's broiler.
  5. Ladle the hot soup into oven-safe bowls, place thick slices of French bread on top, and sprinkle with provolone, diced Swiss, and grated Parmesan cheese.
  6. Place the bowls under the preheated broiler for about 2-3 minutes.
  7. Remove the bowls from the oven and allow them to cool slightly before serving.

Notes

  • Stir consistently to ensure even caramelization of onions.
  • Experiment with different cheese varieties for unique flavors.
  • Let the soup simmer for a full 30 minutes for full flavor.
  • Watch the broiler closely to prevent burning.
  • Use oven-safe bowls but don’t overfill them.
  • Freeze the soup without croutons to maintain texture.

Nutrition

  • Serving Size: 1 bowl
  • Calories: 350
  • Sugar: 4g
  • Sodium: 800mg
  • Fat: 20g
  • Saturated Fat: 10g
  • Unsaturated Fat: 7g
  • Trans Fat: 0g
  • Carbohydrates: 28g
  • Fiber: 2g
  • Protein: 14g
  • Cholesterol: 30mg

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