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Slow Cooker French Wine and Mustard Chicken…turning a classic French recipe into an easy slow cooker meal using white wine, creamy Dijon mustard, fresh herbs, and parmesan cheese. And I even added in some vibrant kale for veggies and color. This slow-cooked chicken dinner is a hearty and delicious meal to come home to at the end of a busy day. And the best part? It’s the easiest dinner to prepare. Serve with creamy mashed potatoes, steamed rice, or enjoy over buttery egg noodles. You simply can’t go wrong with a dinner like this French-inspired mustard chicken. Bonus? You can also make this in the Instant Pot or on the stove-top.

Breaking out a slow cooker recipe today and it’s not even October…sorry, but then not really. Because I’m pretty sure that most of us are about ready for a slow cooker recipe. Am I right?
This is one of those dishes that I’ve been wanting to make for the longest time now. But I wanted to hold off until the autumn days started to set in. It’s creamy, herby, a touch buttery, and has the BEST flavor. I never thought I was one to enjoy mustard, but that all changed a few years ago when I made this easy skillet coq au Riesling.


Mustard, when used properly can be such a delicious addition to so many dishes. I’ve yet to learn to love it as more of a dip. But every time fall rolls around I love using mustard to make creamy, savory sauces with fresh herbs.
It’s such a cozy combo with so much flavor. And that’s where this slow cooker chicken comes into play.
Sometime over the summer, I had the idea for this dish. But again I knew this felt like more of a fall recipe. So I wrote it down on our editorial calendar as a recipe to share on this very day. I often do this when I come up with an idea months in advance so I don’t completely forget it. Sometimes I never end up creating the recipe, because when I look at it again, I’m not as excited. But then sometimes I go look at the calendar in prep for cooking days and quickly become excited to finally test out the recipe. That was the case with this chicken. And when I finally tested out the recipe, I was so happy with how it turned out.

What I love so much about this slow cooker chicken is just how easy it is to make.
The first step is to mix up the creamy mustard sauce. It’s a mix of dry white wine, milk, both Dijon mustard and grainy Dijon mustard, shallots, and garlic. Very classic to a French-style cream sauce, and so delicious.
Since I was using a mix of skin on and skin off boneless chicken breasts, I wanted to sear the chicken with fresh thyme and sage before adding it to the slow cooker. Searing skin on chicken not only leaves you with a golden, crisp skin, but the fat that cooks out of the skin while searing really adds so much flavor. You can, of course, skip this step, but I do recommend it if you want extra delicious and flavorful chicken.
Also, my slow cooker does not have a searing function, but if yours does, you can then just sear the chicken right in your slow cooker.
Once the chicken has been seared, add it to the slow cooker along with the creamy mustard sauce. Add a little pat of butter, cover, and cook low and slow until the chicken is extra tender and almost falling apart.

As I mentioned above, I really wanted to incorporate a vegetable into this chicken. I went back and forth between a few different vegetables. But in the end, I settled on kale, adding it in towards the end of cooking. The kale perfectly melts into the sauce and adds just the right amount of flavor and texture.
We all really enjoyed it, but we all love kale over here! You could also use chopped broccoli or cauliflower, which I think would be equally great.
To serve, I love to spoon the chicken and creamy sauce over mashed potatoes or brown rice pilaf. I think mashed cauliflower would be incredibly delicious too. Or go the old school route with buttered egg noodles. Any of these will be so delicious, so take your pick!

And that’s it’s. The simplest dinner, great for any night of the week…hearty, creamy, and so freaking good!
PS. I know my cozy recipes are coming to you a little on the early side. BUT I hope all you planners out there really enjoy this recipe. Never hurts to plan your autumn dinners ahead of time!

If you make this Slow Cooker French Wine and Mustard Chicken be sure to leave a comment and/or give this recipe a rating! Above all, I love to hear from you guys and always do my best to respond to each and every comment. And of course, if you do make this recipe, don’t forget to tag me on Instagram! Looking through the photos of recipes you all have made is my favorite!
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Nutritional information is only an estimate. The accuracy of the nutritional information for any recipe on this site is not guaranteed.

Hi Tieghan
I currently have this dish in the slow cooker for 6 hours – for the dinner tonight. I am finding the sauce is very watery (probably from the chicken perhaps) so should i just add flour to thicken it up? Hoping i haven’t diluted any flavours. Thank you
Hey Rosemary,
Sure you could add a little flour or cornstarch to help thicken the sauce. I hope you love the recipe, please let me know if you have any other questions! xTieghan
Delicious! Just made it for dinner. I didn’t have kale so I substituted baby spinach which was on hand. Will definitely make again.
Thank you so much Francesca! I am really glad this turned out so well for you! xTieghan
Getting ready to make this in Instant Pot for tonight. My question is: I am assuming you leave the chicken in the pot once it cools down while you add the kale on the saute function?
Hey Andrea,
Yes that is correct! I hope you love the recipe, please let me know if you have any other questions! xTieghan
Hi there,
What could you sub the wine for?? Chicken broth??
Erin
Hey Erin,
Yes chicken broth is a great sub! I hope you love the recipe, please let me know if you have any other questions! xTieghan
Looks delicious and can’t wait to try! What would be a good substitution for the kale?
Hey Lauren,
You can use spinach in place of the kale. I hope you love the recipe, please let me know if you have any other questions! xTieghan
I have made this recipe several times now. Excellent fall or winter crockpot recipe. I usually serve this with mashed cauliflower in place of the potatoes. Everybody goes back for seconds.
Thank you so much Kathi! xTieghan
How would cooking time need to be adjusted if using bone in chicken breasts? Thank you in advance!
Hey Elsa,
I would increase your cooking time by 15 minutes. I hope you love the recipe, please let me know if you have any other questions! xTieghan
I don’t eat dairy-would this dish still work without the parmesan?
Hi Leah,
Yes you can omit the parmesan. I hope you love the recipe, please let me know if you have any other questions! xTieghan
This was so delicious and incredibly easy to make! I added way more garlic, the juice and zest of a lemon, and a sprinkle of nutmeg to the sauce. Also added some French cut green beans with the kale. It was amazing!! Highly recommend!
Thank you so much Jenny! That is really great to hear! xTieghan
Oh my goodness!! Tieghan, I am such a continuous fan of HBH. You are my go-to!!! Came across this one by fluke — didn’t have grainy mustard but I subbed in more dijon and this funny european mustard we had on hand — and used basil in place of sage (another quarantine substitution) but WOW WAS THIS AMAZING. Thank you!!!
Thank you for trying this Jackie!! I am so glad it turned out so well for you!! xTieghan
We just had this, and it’s what our house considers a “make-again”!
Served it with mashed potato/cauliflower mix, and green beans..
One thing I noticed though, was my cream curdled a bit when added with the wine. I don’t often have cream curdle, so was a bit put off by this, but by the end of cook time, the sauce looked (And tasted) delicious, and the chicken was super moist and fell apart 🙂
Hi Lise! I am really glad this recipe turned out so well for you! Thank you so much for trying it! xTieghan
This looks delicious! I don’t drink wine, so I’m wondering what I could substitute for it. Would cooking wine work if I reduced the salt? Or would it be better to use juice with a splash of white wine vinegar?
Hi Lydia,
You can use chicken broth in place of the wine. I hope you love the recipe, please let me know if you have any other questions! xTieghan
Made this in my instant pot! Really easy and tasted AMAZING!
Thank you so much Devon!! xTieghan
I made this in my slow cooker last night and my youngest daughter (who is a picky eater) said it was one of the best meals she had ever eaten.
Wow that is so amazing to hear! Thank you so much Karen! xTieghan
Hi! I don’t have grainy mustard or heavy cream on hand, could I use more regular dijon mustard and whole milk as substitutes? Thank you! This looks amazing!
Hi Katie,
Yes another mustard that you have on hand will work and same with the whole milk! I hope you love the recipe, please let me know if you have any other questions! xTieghan