Deliciously succulent, these French onion meatballs are brimming with the flavors we love in classic French onion soup. My French onion meatballs recipe features juicy beef meatballs seasoned with thyme in a rich, beefy onion sauce kissed with sherry, plus a finishing sprinkle of Gruyere and mozzarella cheeses melted to gooey perfection!
Tender, Juicy Meatballs with a French Onion Twist
One of my favorite things to do when it comes to creating recipes is to combine two beloved dishes into one mouthwatering and fun presentation.
A few examples of popular “mash up” recipes on the site are my Italian Drunken Noodles, my Gumbo-laya, my Rigatoni Meatball Soup, my Philly Cheesesteak Stew, and my Chicken Fajita Pizza, to name a few—so whimsical, and so deliciously comfy-cozy!
So when I got a hankering for some tender, juicy, succulent beef meatballs recently, the kind that are gently seared on the outside until golden-brown and then nestled in a rich sauce (which can be sopped up with bread or spooned over mashed potatoes!), what sounded utterly enticing to me was the idea of French onion meatballs...
My French onion meatballs recipe takes the classic, earthy flavors many of us just love in French onion soup—the savory beef flavor, the sherry, and the sweet, caramelized onions—and partners them up with juicy beef meatballs kissed with thyme.
Of course, when it comes to French onion soup, that gloriously ooey-gooey, cheesy lid is a huge part of the appeal of ordering up a hot, steaming bowl...
So, these delectable meatballs get that same deliciously melted topping of a combo of Gruyere and mozzarella cheese as their perfect finishing touch!
My French Onion Meatballs Recipe
To create lots of delicious flavor in this dish, I like to start with high quality, lean ground beef.
I typically use organic, grass-fed ground beef these days, and use a lean to fat ratio of 85/15. (97/3 is fine as well, but the meatballs tend to be a bit juicier with slightly more fat.)
Then, I add in lots of aromatics such as finely minced onion, garlic, dried herbs, fresh thyme leaves, plus some milk-soaked bread crumbs and egg to act as binders.
Once formed, these meatballs get a searing in a cast iron skillet for a few moments to create a deeply browned, flavorful crust on the outside.
Then, of course, there's that yummy French onion sauce…
For this, I'm mimicking those flavors in French onion soup, so I use lots and lots of sliced onions (they seem like almost too much at first, but cook way down), a touch of oil and butter, a splash of sherry (white wine works here as well), some beef stock and fresh thyme.
It's the rich, earthy flavor in the sauce when paired with the beef meatballs that creates full flavor for these French onion meatballs.
And, the Gruyere and mozzarella cheeses broiled over top at the end are the decadently tasty part, of course!
Here's a glance at my French onion meatballs recipe: (or just jump to the full recipe...)
- To get started, I prepare my beef meatballs, and brown them in a heavy-bottom, oven-safe skillet until deeply browned and mostly cooked through.
- Next, I prepare my French onion sauce, and then gently place my meatballs into the sauce and top with lots mozzarella and Gruyere cheese.
- Then, I broil the cheese-topped meatballs just until the cheese is gooey and melted, then top with fresh thyme.
- I serve these French onion meatballs with warm, crusty bread on the side, or spooned over top of hot, mashed potatoes.
Recipe
French Onion Meatballs
by Ingrid Beer
These French onion meatballs are nestled into a rich, savory onion sauce kissed with sherry, then topped with Gruyere and mozzarella cheeses!
Category: Entree
Cuisine: French-American
Yield: Serves 6
Nutrition Info: 669 calories per serving
Prep Time: 45 minutes (does not included chill time for meatballs)
Cook time: 45 minutes
Total time: 1 hour 30 minutes
Meatball Ingredients:
- 1 ½ cups fresh breadcrumbs (or panko breadcrumbs)
- ¼ cup plus 2 tablespoons whole milk
- 1 ½ pounds organic ground beef (85/15 ratio)
- 1 tablespoons chopped parsley
- 1 teaspoon fresh thyme leaves, plus extra for garnish
- 1 teaspoon herbes de Provence
- Salt (about 1 teaspoon, or your desired amount)
- Black pepper (about ¼ teaspoon, or your desired amount)
- ½ large, white onion, finely minced
- 4 cloves garlic, pressed through garlic press
- ¾ cup grated Gruyere cheese, divided use
- 1 egg, whisked
- 1 cup shredded, whole milk mozzarella cheese
French Onion Sauce Ingredients:
- 4 tablespoons olive oil, divided use
- 2 tablespoons ghee or butter
- 2 ½ large, white onions, halved and sliced
- Salt
- Black pepper
- 4 cloves garlic, pressed through garlic press
- 1 teaspoon herbes de Provence
- 1 teaspoon dried thyme
- ¼ cup sherry (or white wine)
- 1 ½ tablespoons flour
- 2 ¼ cup beef stock
- 2 teaspoons fresh thyme leaves
- Begin by gathering and prepping all of your meatball ingredients according to the ingredient list above to have ready and organized for use.
- Place your breadcrumbs into a dish, and add the milk to them to soak for 5 minutes. In the meantime, place your ground beef into a large bowl.
- After the breadcrumbs have soaked, add them to the ground beef, along with the parsley, thyme, herbes de Provence, salt, pepper, minced onion, garlic, ¼ cup of the shredded Gruyere cheese, and whisked egg.
- Using your clean hands, gently mix the beef together with the ingredients until well-combined, but taking care not to over mix to keep the meatballs tender. Scoop out 2 tablespoon-size portions of the meat mixture (I like to use my cookie scoop for this), and place onto a tray or large platter to hold.
- Wet your hands with a bit of water, and roll each portion into a round meatball, then place the rolled meatballs into the fridge to chill for 15 minutes.
- Meanwhile, gather and prep all of your French onion sauce ingredients according to the ingredient list above to have ready and organized for use.
- Once the meatballs have chilled, place a large cast iron skillet (or other large, oven-safe, heavy bottom pan that can accommodate the meatballs and sauce) over medium-high heat, and add 2 tablespoons of the olive oil.
- Once hot, add a batch of meatballs into the pan and allow them to sear and brown on all sides for about 8 to 10 minutes. Place the meatballs onto a tray or sheet pan to hold while you brown the rest of the meatballs.
- In the same skillet as you browned the meatballs (which should be on medium-high heat), add another 2 tablespoons of the oil (if there's already enough oil from browning the meatballs, skip the added oil), as well as the ghee or butter.
- Once hot and melted, add the onions plus a pinch of salt and pepper, and allow them to cook down and deeply caramelize for about 20 to 25 minutes, stirring frequently, until the onions become very dark, soft and jammy.
- Then, stir in the garlic, herbes de Provence and dried thyme, just until aromatic (about 30 seconds). Add in the sherry or wine, and allow it to bubble up and reduce for about 30 seconds.
- Sprinkle in the flour and stir that in to incorporate for about 30 seconds, then pour in the beef stock and whisk or vigorously stir to blend in and combine until smooth. Allow the French onion sauce to simmer to 5 minutes, just to tighten it up.
- Meanwhile, turn your broiler on “high”.
- Turn the heat off under the sauce, and stir in the fresh thyme leaves. Nestle back into the pan the browned meatballs, and top them with a combination of the Gruyere and mozzarella cheeses. Place under the broiler for about 5 to 7 minutes, or until the cheese becomes nice and gooey and melted.
- To serve, sprinkle over the meatballs some additional thyme leaves as garnish, and spoon 3 to 4 meatballs, along with lots of with sauce and cheese, into a bowl to enjoy with warm, toasted bread, or over hot mashed potatoes, if desired.
Tips & Tidbits for my French Onion Meatballs recipe:
- Lean ground beef for the meatballs: For tender, juicy meatballs, I typically opt for 85/15 lean organic, grass-fed beef—they have lots of flavor, and they're better quality as well. You can also use 97/3 lean to fat ratio if desired, but they will be a bit leaner in flavor.
- Lots and lots of onions: The recipe calls for what seems like a ton of sliced onions. It seems like a lot in the beginning, but rest assured that the mound will dramatically cook down as the onions caramelize!
- A kiss of sherry or white wine, or leave out the alcohol altogether: Sherry is often added into classic French onion soup, so I add a small splash into this sauce. But you can sub white wine if that's what you have on hand, or even leave out the alcohol completely if you prefer. In that case, just add a touch more beef stock.
- Mozzarella and Gruyere cheeses for added gooeyness: While you can use all Gruyere or all mozzarella cheese here, I like the combination of cheeses. Gruyere is classic atop of French onion soup, and has a nutty, mildly sweet flavor, and the mozzarella has a terrific meltability and mildness, so I like using a bit of that. Feel free to use your favorite cheese that melts!
- What to serve with French onion meatballs: If I'm looking to keep things simple and a light, I'll just lightly toast or warm up some nice crusty, rustic bread, and mop up the sauce and cheese with that. So yummy! Or, if I'm making more of a meal out these meatballs, I'll prep some creamy mashed potatoes, then spoon the sauce and meatballs over top.
Hungry for more delectably savory recipes like this one? Check out this French Onion Chicken, these Turkey Meatballs in Pumpkin Sage Sauce, these Mexican Meatballs, this Braised Beef with Mixed Mushrooms, this French Onion Mushroom Tart, or this French Onion Soup!
Diane
Hi Ingrid ~ Made this for dinner tonight, followed the recipe exactly except for mincing all the garlic. I used fresh bread crumbs and, as recommended, prepped everything beforehand. It was amazing…served the meatballs with smashed, roasted potatoes and steamed spinach…the depth of the flavor was incredible. Will definitely make this again, and it would be perfect to serve to guests for dinner. Hubby said to throw out the meatloaf recipe and use this instead 😉! Thank you for your recipes…love them…and many are in my favorites folder! Thanks again, take care.
The Cozy Apron
Diane, I truly appreciate your comment—thank you! Makes my heart happy that you had such success with the recipe, and that you and your hubby truly enjoyed it.
Thanks for the kind words regarding the recipes...it is my pleasure to share them, and, hopefully, help create a little coziness and nourishment for others through them!
Happy cooking, Diane!
Susie
How could I prepare this ahead for travelling for Christmas?
The Cozy Apron
Hi Susie, so here's what I would do: I would prepare the meatballs and sear them off, allow them to completely cool and store them in a container, on their own. I would then prep the French onion sauce, and also allow that to cool, and keep that in a separate container as well. Have your cheese and herbs prepped in another container (or baggies). Once you arrive at your destination, very gently heat the meatballs in the microwave, just long enough to make them room temp (if already room temp, skip this). Warm the sauce in your ovenproof pan, nestle in the meatballs, top with cheese, and finish in oven as directed. Top with herbs as garnish.
Hope this helps, and I hope you enjoy! 🙂
Gertrude DeBoer
This looks delicious!!! I plan to try it next week (I plan ahead) and was thinking of serving it with linguine or penne. What do you think? Although the idea of serving it with mashed potatoes and a side of veggies appeals as well!
The Cozy Apron
Gertrude, you are a person after my own heart, as I am a "planner" when it comes to my meal prep as well!
I think you could easily serve this with penne or another type of pasta, but honestly, those mashed potatoes can't be beat... These meatballs and that onion-y sauce just go very well with a hot, fluffy pile of mashed potatoes. Oh-so comforting! (And a side of veggies such as garlic-y green beans or Brussels sprouts, etc. would be terrific!)
I hope you enjoy the recipe (whatever you end up serving with it 😉 ), and happy cooking to you!
Bev
Hello I just prepped all my the ingredients, I cannot wait to enjoy:) thank you so much
Looks delish Bev
The Cozy Apron
Fantastic, Bev! May you thoroughly enjoy the dish and gain some comfort and coziness from it!
Dayna
Oh my GOSH. Made this exactly as stated. Blew away my neighbors. I served it on my mashed potatoes (which use browned butter and whole milk—salt and pepper) and everyone threw down! It was a bit more prep than I anticipated—but I think it gets easier after you’ve done it a time or two. I’ll be making this again when it cools down! Spectacular cool weather dinner!
The Cozy Apron
Hi Dayna, that's terrific! How awesome you made this for friends and neighbors, and all enjoyed. 😉 And yes, these are the perfect cool weather recipe, definitely cozy and total comfort food. They do get quicker and easier to whip up once you've prepped them a couple of time, as well.
Happy cooking to you!
Hettie
Absolutely delicious! Followed your recipe exactly and got the promised results. Thanks, so much!
The Cozy Apron
Hi Hettie, fantastic!
Thanks so very much for taking some time to let me know how the recipe turned out for you. Happy cooking to you!
Linda Betz
Ingriiiiid! Do you need me to tell you this is fantastic? Well, it is. Made it for dinner and had warm, crusty bread for dipping. This was just perfect! No changes in ingredients and your instructions were excellent.
I knew I could count on you to make me look like I know what I'm doing in the kitchen. Thank you for sharing this. Hope all is well, my dear. Say hello to Michael for me. xxoo 😘
The Cozy Apron
Linda, you have made my heart so happy! I'm thrilled you gave this super comfy-cozy recipe a try, as it's one of my favorites to whip up for us when we're needing some extra TLC. As a matter of fact, I literally just made this recipe myself, about 3 days ago! 🙂
Sending much love your way, and Michael says "hello!" right back! xoxo
Faye-Ann Thompson
Thank you for this recipe . The minute I saw it I went straight to the store to get all of the ingredients.
My husband tested the meat balls and instantly said they were the best Lil hamburger he had ever tried ( not greasy and tasted incredible) I plan to serve them with the mashed potatoes as recommended as a alternative.
I can already tell this will be a recipe I add to my collection.
Thanks for sharing
The Cozy Apron
Hi Faye-Ann, thanks so much for letting me know that you had success with these savory meatballs. (Hubby approved is always a bonus! 🙂 )
May you enjoy this dish and find comfort in it for a long time to come, spooning these meatballs over top of your delicious mashed potatoes (my favorite side).
Happy cooking to you!
Beth
Can this recipe be made ahead? Also, I want to make it for 10-11 people, should I double or triple the recipe? Thanks!
The Cozy Apron
Hi Beth, you absolutely can make this a couple of days ahead, by prepping the meatballs and searing them off (you can keep the cooked meatballs separate from the sauce in the fridge), and prep the sauce as well. The day you are ready to make and serve, then gently heat the sauce with the meatballs in it, and when warmed through, then top with cheese and proceed by finishing in the oven.
And yes, for 10 to 11 people, I think if you double the recipe, you should be fine, especially if you serve with some mashed potatoes and/or bread on the side to help stretch things.
Hope you enjoy, and happy cooking to you!
David
I made this for the first time tonight. It was fabulous (first time in a long time my wife has asked for seconds - she loves my cooking, but rarely asks for seconds). I served it on wide noodles with 4 meatballs per serving with onion sauce over the top, and with asparagus as our side. I followed the recipe mostly, except for the spices - I improvised a little. It is now a permanent page in my cookbook. I look forward to tinkering with the recipe (perhaps baking the meatballs for a more even roast instead of pan frying ?) and trying other presentations. Thank you.
The Cozy Apron
David, I truly appreciate your comment, and am totally touched by it. Kudos on having your wife ask for seconds—I'm so thrilled for you that the recipe (and your delicious sides) turned out so tasty! 😉
May you both continue to enjoy the recipe, and may you enjoy tweaking and playing around with it a bit, to your liking. Just happy to have provided a good foundation for you to "improvise" with, and have fun with!
Happy cooking to you, David, and I do hope you find many more recipes on the site to try out and, hopefully, enjoy!
Michelle
This might be the best thing I’ve ever made and I cook a lot! It was a perfect winter meal. I used ground turkey because and chicken stock because that’s what I had and it was still perfect! Thank you for sharing!
The Cozy Apron
Michelle, that is fantastic! I'm so happy to read that, and I'm thrilled it turned out so delicious with your substitutions.
My pleasure to share the recipe, happy cooking to you! 🙂
Raven
Made these last weekend, served over pasta one evening and made into subs the next. Wonderful recipe! Didn't change or substitute anything.
Ingrid Beer
Hi Raven, thrilled you enjoyed the recipe, and thanks so much for taking some time to comment and share your experience!
Serving over pasta is fantastic, and turning the leftovers into subs sounds absolutely delicious. 🙂
Melissa
Ingrid, these meatballs were delicious! We're big fans of your French Onion Chicken (been making it regularly since 2015!) and Your French Onion Mushroom Tart (a holiday tradition for 2 years now!), and this French Onion dish did not disappoint. I may try making them with ground chicken in the future, since we tend to eat more of that (your thoughts? maybe add a little olive oil to the mix or an extra egg to help with binding the leaner meat?). I served these over your Roasted Garlic Mashed Potatoes with a side of steamed veggies and some fresh fruit. I just love the richness of the caramelized onions and your use of herbs--so good. I still need to try your French Onion Soup! Love, Melissa
Ingrid Beer
Oh, terrific! These are a favorite of ours, so I'm tickled you all enjoyed the recipe as well. Yes, also try with chicken if you'd like...look up my turkey meatballs (use our search box) and you can get a hint on how I make those, which could be similar to chicken, if you're looking for some inspo. 🙂
Carmen Echols
Woke up this morning wondering if there was such a thing as French onion soup and ground beef. Turns out there is! This recipe is amazing! My husband and I loved it!!
The Cozy Apron
Hi Carmen, that's fantastic! So happy to read that both you and your husband enjoyed these cozy and saucy meatballs. And I hope you enjoy the recipe for a long time to come! 😉
Happy cooking to you!
Suzanne Dubois
I am soooo looking forward to making this tonight! I'm kind of panicking over how many onions though - I mean 2.5 large onions is way different than 2.5 small onions. Is there a preference as to which kind of onion, white or yellow? 🙂
The Cozy Apron
Hi Suzanne, thrilled you'll be trying out this savory and comforting recipe! Yes, you bring up a good point, so I will clarify things in the ingredients... Use 2 1/2 large, white onions here, as you need lots of them (they cook way down) for deep flavor.
Hope that clears things up, and happy cooking to you! 🙂
Michael S
Good morning, good morning, Ingrid!
I'm so excited to have found your website, and this recipe specifically. I plan to make your recipe for a housewarming party that my partner and I are hosting this weekend. It's going to be a part of a luscious French and Italian spread of dishes. We plan to host about 18 guests. Would you recommend doubling or tripling the recipe for that many guests? I read your recommendation to double the recipe for about 10 to 11 guests, but I was curious roughly how many meatballs the original recipe yields. We're serving this as an appetizer with toasted crostini along with a good handful of other appetizers, as well as a main entree.
Thank you in advance for your input and for sharing this wonderful recipe. I so look forward to making it this weekend!
The Cozy Apron
Hello Michael! I am so excited you found my site as well, and that these tasty meatballs are on the menu for your wonderful housewarming party this weekend! I am honored, and your theme sounds absolutely delicious. Lucky guests! 😉
So, this recipe yields roughly 24 to 26 meatballs, and given the information you shared about having crostini as well as quite a number of other appetizers available, along with a main entree, I'm thinking that simply doubling the recipe here for the 18 people should be sufficient. This should make around 48 to 52 meatballs (especially if you make them a hint smaller), and each person could get 2 to 3 meatballs. You could always do 2 1/2 times the recipe for a few more, but I'm thinking tripling it may be a lot of meatballs, especially in this situation.
My hope is that you and your guests thoroughly enjoy these, and that your gathering is a fantastic success! Happy cooking to you, Michael!
PS) If you're still in need of any appetizer ideas, I thought you might be interested in this burrata recipe, as part of the Italian side of things. 😉
Katie
Can you freeze the meatballs?
The Cozy Apron
Hi Katie, you can freeze the meatballs once they have been browned, and completely cooled. Then, when ready to enjoy, allow to gently thaw for a day or so in the fridge, then proceed with making the sauce, adding meatballs to it (to also warm them through), topping with cheese, and broiling.
Hope that helps, and happy cooking to you!
Taylor Anderson
Made this for dinner tonight with some garlic bread. I absolutely loved it! Great recipe!!
The Cozy Apron
Thanks so much, Taylor, thrilled you enjoyed it! 😉 Sounds absolutely divine served with the garlic bread!
Elizabeth Roberts
What size cast iron skillet/pot did you use?
The Cozy Apron
Hi Elizabeth, my cast iron skillet is a 12 inch size.
Jessie
Made this last night! 10 outta 10! So delicious!
The Cozy Apron
Hi Jessie, thanks for such a stellar review! Thrilled you enjoyed this comfy-cozy and savory dish. 🙂