Name: Instant Pot French Onion Soup: Cozy Comfort in No Time
Prep time: 15 min
Cook time: 15 min
Total time: 30 min
Ingredients: 4 tablespoons Butter (Feel free to use salted or unsalted.); 4 large Yellow Onions (Sliced.); 1 teaspoon Salt (Adjust to taste.); 1 teaspoon Pepper (Adjust to taste.); 1 teaspoon Dried Thyme (Fresh thyme can be used.); 2 tablespoons Flour (Can be omitted for gluten-free.); 1 cup Red Wine (Substitute with additional broth if avoiding alcohol.); 4 cups Beef Broth (Vegetable broth can be used for vegetarian option.); 1 loaf Baguette (Sliced into 1/2 inch thick slices.); 2 cups Gruyere Cheese (Shredded.)

The warmth of a cozy kitchen, the scent of caramelizing onions wafting through the air—this is the moment when I know I’m about to create something special. Today, I’m excited to share my easy Instant Pot French Onion Soup, a dish that blends comfort and sophistication in every spoonful. With its rich, savory undertones and that irresistible crust of melted Gruyere cheese, this recipe is not just a meal; it’s a culinary hug. Whether you want a quick weeknight dinner or an impressive starter for your next gathering, this soup is a crowd-pleaser that comes together in no time thanks to the magic of the Instant Pot. Plus, it’s freezer-friendly, making it an ideal choice for busy days! Are you ready to indulge in a bowl of this delightful goodness? Let’s dive into the recipe!

Why is Instant Pot French Onion Soup a Must-Try?

Comforting Flavor: The rich taste of caramelized onions combined with melted Gruyere cheese delivers a cozy warmth that’s truly irresistible.

One-Pot Wonder: Minimal cleanup is required since everything cooks effortlessly in the Instant Pot, letting you enjoy the moment without the fuss.

Quick Prep Time: In just under an hour, you can have this restaurant-quality soup ready to serve—perfect for those busy weeknights!

Versatile Options: Whether you’re going vegetarian with vegetable broth or opting for the classic beef flavor, this recipe adapts to your preferences.

Make Ahead & Freeze: Store portions for later in the freezer, making it a convenient meal option that’s always ready to warm you up!

Elevate your soup game with this delightful dish, ideal for pairing with a refreshing arugula salad or a warm French dip sandwich.

Instant Pot French Onion Soup Ingredients

For the Soup

Butter – Adds richness and flavor; feel free to use salted or unsalted based on your preference.
Yellow Onions – The primary flavor source; these onions caramelize beautifully to create that classic taste.
Salt & Pepper – Essential for enhancing the overall flavor; adjust to your liking.
Dried Thyme – Contributes earthy, herbal notes; try using fresh thyme for an even more vibrant taste.
Flour – Helps thicken the soup; can be omitted for gluten-free versions.

For the Liquid

Red Wine – Enhances depth of flavor; substitute with additional broth if avoiding alcohol.
Beef Broth – Provides hearty flavor; can be replaced with vegetable broth for a vegetarian Instant Pot French onion soup.

For the Topping

Baguette – Use 1/2 inch thick slices for optimal toasting; sourdough works great too.
Gruyere Cheese – Melts beautifully on top; substitute with Swiss or mozzarella for a different twist.

Now that we’ve gathered our ingredients, it’s time to create a cozy bowl of Instant Pot French Onion Soup that’s bound to warm your soul!

Step‑by‑Step Instructions for Instant Pot French Onion Soup

Step 1: Sauté the Onions
Set your Instant Pot to sauté mode and melt 4 tablespoons of butter, ensuring it coats the bottom. Add 4 sliced yellow onions and sauté, stirring regularly for about 15 minutes, until the onions turn a beautiful golden brown and become tender. This caramelization is key for that rich flavor in your Instant Pot French onion soup.

Step 2: Season and Thicken
Once the onions are caramelized, season them generously with salt, pepper, and 1 teaspoon of dried thyme, stirring to incorporate. Sprinkle in 2 tablespoons of flour, mixing well until the onions are fully coated. Cooking for another minute will help the flour thicken the soup, enhancing its velvety texture.

Step 3: Add Wine for Depth
Pour in 1 cup of red wine and continue sautéing for 1-2 minutes. You’ll want the wine to reduce slightly, allowing the alcohol to cook off while infusing the soup with rich flavors. Stir frequently until the liquid thickens and the mixture becomes fragrant, setting up for a deep and savory broth in your Instant Pot French onion soup.

Step 4: Combine Broth and Cook
Carefully pour in 4 cups of beef broth and give everything a good stir to combine. Seal the Instant Pot lid and ensure the valve is set to sealing. Cook on high pressure for 5 minutes, allowing the flavors to meld beautifully. You’ll notice the delightful aroma wafting through your kitchen as it builds pressure.

Step 5: Quick Release the Pressure
Once the cooking time is up, carefully perform a quick pressure release by switching the valve to venting. Wait until the steam dissipates completely and it’s safe to open the lid. Be cautious of the hot steam escaping, as your Instant Pot French onion soup is ready for the final touches.

Step 6: Assemble and Prepare to Broil
Ladle the hot soup into oven-safe ramekins, filling them generously. Top each ramekin with a slice or two of baguette, placing it right on the soup to soak up the flavors. Sprinkle a generous amount of shredded Gruyere cheese on top, ensuring every bit is covered for that melty finish.

Step 7: Broil for a Golden Finish
Preheat your oven’s broiler and place the ramekins on a baking sheet. Broil the soup for 2-3 minutes, keeping a close eye to avoid burning, until the cheese is bubbling and golden brown. This step adds that necessary crispy texture and beautiful presentation to your Instant Pot French onion soup.

Step 8: Serve and Enjoy
Carefully remove the ramekins from the oven (they’ll be hot!). Let them cool slightly before serving hot. The combination of the rich, flavorful soup and the crusty cheese will make every spoonful a comforting delight, perfect for cozy evenings or special occasions.

Instant Pot French Onion Soup Variations

Get ready to dial in the flavors of your Instant Pot French Onion Soup with these creative twists and substitutions!

Cheese Swap: Substitute Gruyere with Swiss, Emmental, or Provolone for a different cheesy experience. Each cheese brings its unique flavor, offering delightful options for your taste buds.
Vegetarian Version: Use vegetable broth instead of beef broth. This creates a lighter soup that’s just as cozy and satisfying, perfect for shareable gatherings.
Gluten-Free: Replace regular flour with a gluten-free alternative. Enjoy the same comforting texture without worrying about gluten; paired with a fresh baguette, this soup remains delicious and wholesome.
Herb Boost: Incorporate fresh herbs like rosemary or parsley in addition to thyme for a vibrant flavor burst. The fresh notes elevate the dish even further, transforming each spoonful into something special.
Spicy Kick: Add a pinch of crushed red pepper flakes for those who crave a little heat in their soup. A little spice can change the whole dynamic, making it wonderfully inviting!
Roasted Garlic: For an added flavor depth, fold in roasted garlic during the mixing stage. This twist transforms the soul-warming soup into an irresistible treat.
Creamy Delight: Stir in a splash of heavy cream after cooking for a more decadent, creamy texture. This little addition wraps the soup in a luxurious embrace, making it absolutely irresistible.
Serve with Flair: Pair your soup with a side of classic grilled cheese or a fresh arugula salad to enhance your dining experience. Just as special as the soup itself, these sides can elevate your meal to new heights!

With these variations, you can create your perfect bowl of Instant Pot French Onion Soup, whether you’re enjoying a quiet night in or hosting a dinner party that wows your guests. For more comforting recipes, don’t forget to check out my Crock Pot Soup and Cheeseburger Soup Comfort for more cozy delights!

What to Serve with Instant Pot French Onion Soup

The warmth of this velvety, cheesy delight invites a feast of flavors to accompany it.

Arugula Salad: A peppery arugula salad adds a refreshing contrast, balancing the richness of the soup perfectly. Toss it with a light vinaigrette for added zest.
Marinated Steak: Serve it alongside flavor-packed marinated steak for a hearty meal. Pairing the savory notes of the steak with the sweet broth creates a delightful harmony.
French Dip Sandwich: Create a full French experience with a French dip sandwich. The crusty bread and tender meat will delight your taste buds alongside the soup.
Garlic Bread: Nothing beats the classic pairing of garlic bread. Its crispy exterior and buttery, garlicky goodness make it the perfect vehicle for soaking up that savory broth.
Roasted Vegetables: Seasonal roasted veggies add a delightful crunch and earthy flavor. Choose a mix of bright colors for a beautiful presentation alongside your soup.
Crispy Brussels Sprouts: These savory bites bring an addictive crunch, contrasting beautifully with the soup’s velvety texture. A sprinkle of parmesan will elevate this pairing.
Sauvignon Blanc: A chilled glass of Sauvignon Blanc enhances the flavors while cutting through the richness of the soup. Its bright acidity is a delightful counterpoint.
Chocolate Mousse: For dessert, end on a high note with a rich chocolate mousse. The creamy sweetness will perfectly complement the savory notes of the meal, leaving everyone satisfied.

Expert Tips for Instant Pot French Onion Soup

Onion Selection: Choose yellow onions for the best flavor; they caramelize perfectly, giving your Instant Pot French onion soup that classic taste.
Don’t Rush Caramelization: Allow enough time for the onions to brown, as this step enhances the soup’s depth of flavor. Patience pays off!
Watch the Broil: Keep a close eye on the cheese while broiling. It can go from perfectly melted to burnt in a flash—turn on the oven light for easier monitoring.
Adjust for Thickness: If you prefer a thicker soup, add a cornstarch slurry after cooking. Let it sit for a few minutes to achieve the desired consistency.
Storing Leftovers: Store leftover soup without the bread and cheese to maintain freshness. It’s freezer-friendly, making it perfect for busy days ahead!

How to Store and Freeze Instant Pot French Onion Soup

Room Temperature: Serve immediately after broiling for the best flavor; however, leftovers can sit out for no more than 2 hours.
Fridge: Store any leftover soup in an airtight container in the fridge for up to 3 days. Avoid adding bread and cheese until ready to serve for optimal freshness.
Freezer: Freeze the Instant Pot French onion soup in batches without the bread or cheese for up to 3 months. To reheat, simply thaw overnight in the fridge and warm on the stove.
Reheating: Gently reheat the soup on the stovetop or use the Instant Pot’s sauté function until warmed through. Add fresh cheese and bread right before serving for that delightful crust.

Make Ahead Options

These Instant Pot French Onion Soup preparations are perfect for busy weeknights! You can caramelize the onions and season them with salt, pepper, and thyme up to 24 hours in advance. Just refrigerate the mixture in an airtight container until you’re ready to use it. Additionally, you can prepare the soup entirely (without the bread and cheese) and store it in the fridge for up to 3 days. When you’re ready to serve, simply heat the soup in the Instant Pot on the sauté mode until steaming, then top with baguette slices and cheese before broiling. This way, you’ll enjoy an effortlessly delicious meal that feels just as comforting as when it’s freshly made!

Instant Pot French Onion Soup Recipe FAQs

How do I select the best onions for my French onion soup?
Absolutely! Yellow onions are the best choice due to their natural sweetness and ability to caramelize beautifully, which enhances the soup’s flavor. Look for onions that are firm and free from dark spots or sprouts. White onions can work in a pinch, but they will alter the flavor slightly.

What’s the best way to store leftover Instant Pot French Onion Soup?
You can store leftover soup in an airtight container in the fridge for up to 3 days. Just remember to keep the bread and cheese separate until you’re ready to enjoy it again to maintain freshness and prevent sogginess. Reheat gently on the stovetop for the best results!

Can I freeze Instant Pot French Onion Soup?
Very! Freezing this soup is a great option. Let it cool completely, then freeze without the bread and cheese. Portion it into freezer-safe containers or bags and store it for up to 3 months. When you’re ready to enjoy, thaw overnight in the fridge and reheat on the stove or using the Instant Pot sauté function.

What should I do if my soup is too thin?
If you find that your soup is thinner than desired after cooking, no worries! You can make a cornstarch slurry by mixing 1 tablespoon of cornstarch with 2 tablespoons of cold water. Stir this mixture into the soup after it’s cooked, and let it simmer for a few minutes until it thickens to your desired consistency. This is an easy fix that truly enhances the soup!

Is Instant Pot French Onion Soup suitable for vegetarians?
Certainly! To make this delicious soup vegetarian-friendly, simply substitute beef broth with vegetable broth. This adjustment still allows for that rich flavor while keeping it suitable for non-meat eaters. It’s an excellent way to accommodate dietary preferences without sacrificing taste!

Are there any special considerations for allergies with this recipe?
Absolutely! Always check for allergies, especially considering the use of butter and flour. For a gluten-free version, you can substitute flour with a gluten-free alternative. Make sure to use broth and cheese options that are allergy-safe for any guests with specific dietary restrictions. I recommend double-checking ingredients if you’re serving others!