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Slowly Braised Beef French Onion Soup with Melty Gruyère Toasts

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This Slowly Braised Beef French Onion Soup is everything you love about the bistro classic, made heartier with succulent shredded beef! Slowly simmer a chuck roast with wine and aromatics until spoon-tender, then turn the flavorful braising liquid into a beefy broth for the soup, a clever 2-for-1 method for rich flavor in every spoonful. Just stir in the jammy caramelized onions, then serve with melty Gruyère sourdough toasts on the side. Deliciously rich without being heavy, French onion soup with beef will keep you warm and satisfied long after the last bite. The coziest project for snow days, slow days, and Sunday suppers all winter long! Make-Ahead Directions Provided.

Two bowls of beef French onion soup topped with fresh herbs, served with toasted bread slices covered in melted cheese, on a stone surface with a glass of red wine and a blue-patterned plate.
Photography by Gayle McLeod

Classic French Onion Soup Meets Slow-Braised Beef, and It’s the Best Version You’ll Ever Have

As a longtime lover of both hearty homemade soups and all things French onion, it kind of cracks me up to admit that traditional French onion soup just doesn’t do it for me. I adore the caramelized onions and melty cheese pulls, but after a few bites, all that richness is a lot. My palate is overwhelmed, my stomach is full of onions, and yet I’m…still starving? 😅

So when Smitten Kitchen first introduced me to the idea of making a heartier French onion soup with beef, it was a lightbulb moment.💡Yes, of course! You still get all the coziness of the bistro classic, but with shredded braised beef to make it a full meal. 

I’ve been making Deb’s genius version for years, adding my own personal tweaks along the way, and am so excited to share this French onion beef soup recipe with you. It’s truly what I believe to be the BEST French onion soup imaginable. From the way it fills your house with the heavenly aromas of beef and onions, to the last hearty, silky spoonful—there’s so much to love. 

With the perfect balance of jammy-sweet caramelized onions, meltingly tender shredded beef, herb-laced beef broth, and a side of golden, garlicky cheese toasts, this bowl of French onion soup is worth going back for seconds. 🥰

⌛Timing Note! This beef French onion soup recipe has several components—slowly braising the beef, straining the broth, and gently caramelizing the onions over low heat—which makes it an hours-long labor of love. But it’s mostly hands-off and worth every minute! Just plan ahead, pour a glass of wine as the snow falls, and enjoy the process.

Key Ingredients

An overhead view of a kitchen counter with ingredients displayed: raw beef, sliced onions, celery, carrots, grated cheese, butter, fresh herbs, bread, garlic, seasonings, and bottles of wine and broth.
This braised beef French onion soup coaxes gourmet flavor out of humble ingredients like chuck roast, sweet onions, red wine, sherry, and fresh thyme for an extra-decadent twist on the classic.

Best beef for French onion soup?🥩When you’re braising and shredding beef, there’s really no need to use a premium cut like English short ribs. I use plain ol’ chuck roast because a low-and-slow simmer tenderizes the heartier cut, making it practically fall apart. For best results, choose a meaty roast with nice marbling throughout. This fat translates to super tender, flavorful shredded beef!

I like to use Vidalia onions in French onion-inspired recipes. 🧅Their mellow flavor and natural sweetness caramelize exceptionally well—but most onions (red, white, yellow, even shallots) also work just fine.

Dry sherry is one of my favorite tricks for caramelizing onions. There’s a reason culinary icons like Julia Child and Ina Garten use it in their French onion soup recipes!🍷This Spanish fortified wine has a crisp brightness that cuts through the richness of the caramelized onions and beef.

Braise the Beef and Build the French Onion Soup Broth

The genius of this braised beef French onion soup is that after one single slow simmer, you end up with juicy, shredded beef AND a wine-and-herb-infused beef broth. It’s a two-for-one method that ensures none of the flavor goes to waste!

I started with my reader-favorite 5-Star Meltingly Tender Braised Beef, but made a few tweaks to adapt it for beef French onion soup. First, I sliced the chuck roast into several pieces for easy shredding, then added extra stock to ensure there was plenty of braising liquid left at the end to build the soup. It’s not a totally from-scratch broth, but it’s infused with so much wine, garlic, and thyme that it tastes like it simmered all day (because it did).

Raw filet mignon steaks seasoned with salt and pepper sit on a blue cutting board next to a knife and a small bowl of seasoning on a speckled countertop.
Step 1: Prepare the chuck roast for searing.
1

Searing the chuck roast is an essential first step! This caramelizes the meat, adding next-level richness to the brothy base of the French onion soup. For maximum browning, I like to slice the roast into 5-6 large pieces for extra surface area and always pat it dry to remove as much moisture as possible. Don’t forget to season generously with salt!

Several browned beef roast pieces are searing in a black cast iron pot. A meat fork rests beside the meat, and the surface around the pot is light-colored.
Step 2: Sear the beef.
2

In a heavy-bottomed pot with a tight-fitting lid, sear the beef on each side. Take your time getting a hard, golden-brown crust on all sides of your chuck roast—it’s worth the payoff in flavor, both in the meat and the beef broth! Set aside once seared.

🥩 Don’t overcrowd your pan! This inhibits browning and causes the meat to steam instead of sear. It’s better to work in batches, even if it takes a little more time.

A pot of braised beef with rich brown sauce, topped with halved garlic bulbs, onions, carrots, celery, and a bundle of fresh thyme, on a beige countertop.
Step 3: Deglaze the pot and build the braise.
3

Cook carrots, celery, and onion until softened, then add tomato paste for a little extra depth. Deglaze the pot by slowly pouring in the red wine, scraping up any fond from the bottom (these crispy bits are FULL of flavor!). Add the browned beef back into the pot and build the braise with a head of garlic, fresh thyme, beef stock, and splash of Worcestershire sauce.

A pot filled with rich, dark French onion soup featuring chunks of beef, carrots, celery, onions, and a bundle of fresh herbs in a savory broth.
Step 4: Braise the beef.
4

Cover and braise the chuck roast in the oven for 3 – 3 ½ hours until the beef is tender enough to shred with the twist of a fork and your kitchen smells amazing. I prefer using my oven to keep the stovetop free, but I’ve also included slow-cooker and Instant Pot braising instructions in the Recipe Notes.

Shredded cooked beef on a metal tray with a meat fork, next to a glass measuring cup filled with brown beef broth, all on a light stone countertop.
Step 5: Shred the beef and strain the broth.
5

I love shredding the beef about the same size as the caramelized onions to keep every bite balanced. Once shredded, strain the vegetables, herbs, and garlic from the braising liquid and skim off any excess fat. All the flavor you’ve built over the past few hours is infused into this stock—we’ll use it for the base of the soup!

How to Caramelize Onions for French Onion Soup

Caramelized onions are the star of French onion soup, so cooking them properly really matters. I’ve spent a lot of time perfecting the ins and outs of caramelizing onions and found 2 secrets to jammy-sweet (not burnt!) results.

First, thinly slice the onions from root to tip (along their natural grain) to prevent them from turning mushy as they cook. It’s also best to use a heavy-bottomed pot because it conducts heat well for even caramelization. You’ll eventually use this pot to assemble the soup, so choose one that’s big enough!

⏲️ Timing Tip → During recipe testing, I learned it’s best to start caramelizing your onions when the beef is in its last 30 minutes of braising. Then everything is ready for French onion soup assembly at about the same time.

A white pot filled with sliced raw onions being stirred with a wooden spoon, set on a speckled countertop.
Cook the thinly sliced onions in melted butter for 10-15 minutes until soft and translucent. No salt yet! Salt pulls out moisture and prevents the onions from browning. I usually cover the pot with a lid and check on them every few minutes—they don’t need much attention right now.
A pot filled with caramelized onions being stirred with a wooden spoon on a speckled countertop. The onions are golden brown and creamy, with some browning on the bottom of the pot.
Once softened, season with salt and continue cooking for an additional 20-30 minutes. The heat will begin to release the onion’s natural sugars, turning them a rich amber color. This is mostly hands-off, but you should check on them and stir occasionally. Things really start to smell delicious here!

👩🏻‍🍳 If the onions look like they’re starting to burn, just lower the heat. As the sticky fond builds up on the pan, you’ll need to stir more often to encourage browning and prevent burning. 

A white pot with caramelized onions, fresh thyme, and a wooden spoon on a speckled countertop. A hand pours liquid from a glass into the pot.
Finish the caramelized onions by stirring in fresh thyme, then deglaze the pot with sherry, scraping up every golden bit of fond with a wooden spoon—this is where all the flavor is! Continue to simmer until the wine is reduced by half. Next step, soup assembly!

Build the Soup and Serve With Cheesy Sourdough Toast

You’ve done all of the hard work up until this point, friend. 🙌🏼 From here, it’s just about bringing the braised beef, caramelized onions, and infused broth together into a craveable pot of soup.

Add the shredded beef and strained beef broth to the pot of caramelized onions and gently simmer until you’re ready to serve. Ta-da—it’s French onion soup with beef! ✨

Make Ahead Tip: Like most soups, this recipe only gets more flavorful the longer it sits. You can prepare just the beef and broth or assemble the entire beef French onion soup up to 3 days ahead of a dinner party or gathering with friends.

French onion soup is traditionally topped with cheesy French bread floating in the broth. Delicious, of course, but the bread tends to be super soggy by the time you dig in. Everything is already so soft, and I’d prefer a little contrasting texture.

Smitten Kitchen had another great solution here—serving a side of golden, garlicky sourdough toasts with melty Gruyère instead! Hearty sourdough stands up beautifully to rich beef and caramelized onions, and the Gruyère adds that gooey cheese pull you crave in French Onion soup. 🤩 You can toast them up in minutes under the broiler!

A baking tray with six slices of bread, five topped with shredded cheese and one with a garlic clove. The tray sits on a speckled countertop, and a bowl of shredded cheese is partially visible to the side.
Broil sliced sourdough bread for 2-3 minutes per side until golden, then rub each side with a garlic clove for extra flavor and top with shredded Gruyère cheese.
Six slices of toasted bread topped with melted cheese and garnished with fresh herbs are arranged on a metal baking sheet, resting on a light-colored countertop.
Return the toasts to the oven and finish broiling until the cheese is melty and bubbling. Easy!
A bowl of beef French onion soup topped with fresh herbs, surrounded by slices of toasted bread with melted cheese on a light countertop.
Making French onion soup with beef is so much more satisfying! Layered with tender-sweet onions, succulent meat, and crispy-cheesy sourdough toast, it’s truly the best French onion soup you’ll ever have.
A bowl of beef French onion soup topped with a slice of toasted bread and melted cheese, garnished with fresh thyme. Another bowl and a slice of bread are partially visible nearby on a stone countertop.
Proudly serve it to loved ones after a cozy day cooking in the kitchen, or snuggle up with a bowl on a chilly winter evening. Like a French bistro, at home!

I can’t wait for you to try this Slowly Braised Beef French Onion Soup with Melty Gruyère Toasts! If you do, be sure to let us know! Leave a comment with a star rating below. You can also snap a photo and tag @playswellwithbutter on Instagram. We LOVE seeing your PWWB creations! ♡ Happy cooking!

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A bowl of French onion soup with caramelized onions and shredded beef in rich broth, garnished with fresh herbs, served with a slice of crusty bread topped with melted cheese and black pepper.

Slowly Braised Beef French Onion Soup with Melty Gruyere Toasts

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  • Author: Jess Larson
  • Prep Time: 30 minutes
  • Cook Time: 3 ½ hours
  • Total Time: 4 hours
  • Yield: serves 6-8 1x
  • Category: Soups, Stews, and Chili Recipes; Beef Recipes
  • Method: Stovetop, Braised, Caramelized
  • Cuisine: American, French-Inspired

Description

This Slowly Braised Beef French Onion Soup is everything you love about the bistro classic, made heartier with succulent shredded beef!

Slowly simmer a chuck roast with wine and aromatics until spoon-tender, then turn the flavorful braising liquid into a beefy broth for the soup, a clever 2-for-1 method for rich flavor in every spoonful.

Just stir in the jammy caramelized onions, then serve with melty Gruyère sourdough toasts on the side. Deliciously rich without being heavy, French onion soup with beef will keep you warm and satisfied long after the last bite. The coziest project for snow days, slow days, and Sunday suppers all winter long!

Make-Ahead Directions Provided.


Ingredients

Scale

for the braised beef:

  • 33 ½ pounds beef chuck roast, trimmed of excess fat
  • kosher salt and ground black pepper
  • 23 tablespoons olive oil
  • 2 medium carrots, peeled as desired and sliced into 23 large pieces
  • 2 stalks celery, sliced into 23 large pieces
  • 1 medium yellow onion, peeled and quartered
  • 2 tablespoons tomato paste
  • 1 cup dry red wine
  • 1 head garlic, halved crosswise
  • 1012 sprigs fresh thyme, tied with twine
  • 8 cups beef stock or broth
  • 2 tablespoons Worcestershire sauce

for the French onion soup:

  • 4 tablespoons unsalted butter
  • 23 large sweet onions (approx. 3 pounds), thinly sliced
  • kosher salt and ground black pepper
  • 1 tablespoon fresh thyme (from 1012 sprigs or substitute with 1 teaspoon dried thyme)
  • ½ cup dry sherry (see Recipe Notes)
  • shredded braised beef and beef braising liquid (above)

for the cheesy garlic toasts:

  • 810 slices sourdough bread (from one small boule), sliced 1-inch thick
  • 1 clove garlic, cut in half
  • 8 ounces gruyère or melty cheese of choice, shredded (approx. 2 cups)


Instructions

Start with the braised beef:

  1. Prep: If time allows, 20-30 minutes before you begin cooking, pull the beef roast from the refrigerator to allow to come up to room temperature. Just before cooking, preheat the oven to 325 degrees F, ensuring a rack is positioned in the center of the oven. Use a paper towel to pat the beef as dry as possible. Slice the roast into 5-6 large pieces. Season each liberally with kosher salt and ground black pepper; a good rule of thumb is 1 teaspoon kosher salt per pound of meat.
  2. Brown the beef: Add the olive oil to a large, oven-safe pot with a tight fitting lid (I use a 5-qt Dutch oven) over medium-high heat. Once hot and shimmering, carefully add the seasoned beef, working in batches to avoid overcrowding the pot. Cook for 4-5 minutes per side, until nicely browned. Transfer the beef to a plate and set aside. Carefully pour off all but 2 tablespoons of fat from the pot (discard once cooled).
  3. Build the braise: Return the pot to medium-high heat. Add the carrots, celery, and onion and cook 2-3 minutes, until lightly softened. Stir in the tomato paste and cook 1-2 minutes longer. To deglaze the pot, slowly pour red wine in, while scraping up any browned bits from the bottom with a wooden spoon. Add the browned beef back in, along with the garlic, thyme, beef stock, and Worcestershire sauce. Stir to combine.
  4. Braise the beef: Cover and transfer to the oven. Braise for 3 – 3 ½ hours. You’ll know the beef is ready when it’s fall-apart tender, shredding easily with the twist of a fork. Remove from the oven. (For streamlined prep, I typically start caramelizing the onions (Step 1, below) in the last 30 minutes of braising.)
  5. Shred the beef and strain the broth: Transfer the braised beef to a plate or cutting board and shred into bite-sized pieces, discarding any visible fat from the meat. Set aside. To strain the broth, place a fine mesh sieve over a large bowl (I use an 8-cup liquid measuring cup). Pour the braising liquid through the sieve, then use a large spoon or ladle to skim off any excess fat from the surface of the strained broth. Set the infused beef stock aside for later and discard the spent aromatics and any fat you skimmed off.

Caramelize the onions and build the soup:

  1. Soften the onions: Melt the butter in a large Dutch oven over medium heat. Add the sliced onions and stir to combine. Cook, stirring occasionally, for 10-12 minutes until softened and translucent. (At this point, the onions don’t require much attention – this is a great time to finish the braised beef (Step 5, above).)
  2. Caramelize the onions: Once softened, reduce heat to medium-low. Season with 1 heaping teaspoon kosher salt. Continue to cook for 20-30 minutes, stirring occasionally, until the onions are tender, fragrant, and deeply caramelized. Adjust the heat as needed to cook the onions slowly. The closer you get to caramelization, the more often you’ll need to stir – this promotes even browning and prevents burning.)
  3. Deglaze with sherry: Once caramelized, stir in the thyme. To deglaze the pot, slowly pour the sherry in, while scraping up any browned bits from the bottom with a wooden spoon. Bring to a simmer, then cook 2-3 minutes or until the sherry is reduced by half.
  4. Build the soup: Add the shredded beef and infused stock to the pot, stirring to combine well. Adjust seasoning to taste. Bring the pot to a gentle simmer and hold over low heat until ready to serve.

Finally, prep the garlicky cheese toasts and serve:

  1. Prep: Preheat your oven’s broiler to its highest setting, ensuring a rack is positioned in the top third of the oven. Line a large baking sheet with parchment or foil for easy clean up.
  2. Broil the garlicky cheese toasts: Arrange the sliced bread on the prepared baking sheet. Broil 2-3 minutes per side, just until toasty and golden – watch closely to avoid burning. Rub each slice with the cut sides of the garlic clove, then top with a nice handful of shredded cheese. Return to the oven and broil 2-3 minutes longer, until the cheese is melted and golden.
  3. Serve: Ladle the warm French onion beef soup into individual bowls and serve with garlicky cheese toasts on the side. Enjoy!

Notes

Ingredient Notes:

  • Sherry is a Spanish fortified wine, meaning it is a wine that is “fortified” with a distilled spirit, most often brandy. Sherry ranges in style – for this recipe, it’s best to use dry sherry, as its crisp flavor helps cut through the richness of the caramelized onions and beef broth. You can find dry sherry in the fortified wine section of your wine or liquor shop – it’s often labelled “fine” or “fino.”
  • Sherry substitutes. ⇢ If you cannot find dry sherry, substitute with dry vermouth or dry, unoaked white wine. If you prefer not to cook with alcohol, substitute with an equal amount of chicken stock with a splash of apple cider vinegar whisked into it.

Alternate Cooking Methods:

  • Crock Pot / Slow Cooker Braised Beef: Prep the recipe according to Steps 1-3, above. Once the pot is deglazed, transfer the seared beef chuck roast, vegetables, and wine to the slow cooker and finish assembling according to Step 3. Slow cook on high for 3-4 hours or on low for 6-8 hours, stirring occasionally. If your slow cooker has a searing/browning feature, you can use it to prepare the braised beef (Steps 1-4) right in the slow cooker.
  • Electric Pressure Cooker / Instant Pot Braised Beef: Use your Instant Pot’s “Sauté” setting to prepare the recipe according to Steps 1-3, above. Cover and seal the pressure cooker and cook on manual high pressure for 50 minutes. Allow the pressure cooker to naturally release pressure for 10 minutes before carefully flicking the valve to its “venting” position to vent out any residual pressure.

Make-Ahead, Storage, Reheating, and Freezing:

  • Prep Ahead: The braised beef and broth can be made up to 3 days in advance. Shred and strain according to Step 5, then store in separate airtight containers in the refrigerator.
  • Storage and Reheating: This French onion beef soup is incredibly make-ahead friendly – its flavors get even better the longer it sits. To store, transfer the cooled soup to an airtight container and place any leftover cheese toasts in a separate airtight container. Store in the refrigerator for up to 4-5 days. Reheat on the stovetop or in the microwave until warmed through.
  • Freezer Instructions: Transfer the cooled soup to a freezer container (or divide between multiple freezer containers for smaller portions) and freeze for up to 3 months. Thaw overnight in the refrigerator or, for a quicker thaw, submerge the freezer container in room temperature water. Reheat on the stovetop or in the microwave until warmed through, thinning it out with a splash of water or beef stock as needed.

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Two bowls of French onion soup with braised beef, topped with fresh herbs. Nearby is a slice of toasted bread with melted cheese on a blue plate, sitting on a beige countertop with scattered thyme leaves.
A bowl of French onion soup with caramelized onions and beef, topped with fresh herbs, served with a slice of toasted bread covered in melted cheese. Another cheese toast is visible in the background.

Hi there, I'm Jess!

If there’s 1 thing to know about me, it’s this: I am head-over-heels in love with food. I’m on a mission to make weeknight cooking flavorful, fast, & fun for other foodies, & PWWB is where I share foolproof recipes that deliver major flavor with minimal effort. Other true loves: pretty shoes, puppies, Grey’s Anatomy, & my cozy kitchen in Minneapolis, MN.

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Comments

  1. 12.13.25
    Beth said:

    Phenomenal! Couldn’t wait to try this and was not disappointed. The flavors are amazing and well balances. This is perfect for a chilly winter day.

  2. 12.8.25
    Mary said:

    I am so excited to make this recipe! I love the fact that it has beef. Can you tell me what type of “dry” red wine you used and what type of “dry” sherry you used? I want to hit this recipe out of the park for my husband…!!! Thank you so much for your help!