French Mustard Chicken

The perfect way to make French mustard chicken with a rich creamy Dijon sauce, tender seared chicken, and bold flavor in one skillet.

Updated

March 18, 2026

french-mustard-chicken-creamy-dijon-skillet

French Mustard Chicken is a creamy skillet dinner that tastes like something from a French bistro but comes together in your own kitchen in about 45 minutes. Tender chicken breasts cook in a rich Dijon and whole grain mustard cream sauce with onion, garlic, and fresh thyme. I made this on a Thursday night when I needed something that felt a little special without a lot of effort, and it has been in my regular rotation ever since.

The sauce is what makes this recipe. It builds on the browned bits left in the pan after searing, which gives it a depth that is hard to get any other way. The two types of mustard work together here: Dijon brings the smooth tangy heat, and whole grain adds texture and a milder, more rustic note. Together they cut right through the heavy cream and create a sauce that is rich but not heavy.

Ingredients for French Mustard Chicken

I always use fresh thyme in this recipe rather than dried. It makes a noticeable difference in the final sauce. Everything else is straightforward and pantry-friendly, which is part of why this recipe works so well on a busy weeknight.

  • 4 boneless, skinless chicken breasts
  • Salt and freshly ground black pepper (to taste; season more generously than you think you need)
  • 2 tbsp olive oil (I recommend a good quality one since it is part of the sear)
  • 1 tbsp unsalted butter
  • 1 onion (finely chopped; my preference is a yellow onion for the best sweetness)
  • 2 cloves garlic (minced)
  • 1 cup chicken broth (low-sodium works well here so you can control the salt level)
  • 1/2 cup heavy cream (in my experience, do not substitute milk; it will not thicken properly)
  • 3 tbsp Dijon mustard
  • 1 tbsp whole grain mustard
  • 1 tsp fresh thyme leaves
  • 1 tbsp fresh parsley (chopped, optional garnish)
french-mustard-chicken-creamy-dijon-skillet

Step-by-Step Instructions

I recommend having all your ingredients measured and ready before you start cooking. This sauce moves quickly once the broth goes in, and you do not want to be measuring mustard while the garlic burns.

Step 1: Season the chicken breasts generously with salt and freshly ground black pepper on both sides. Press the seasoning in lightly with your hands so it adheres well.

Step 2: Heat olive oil in a large skillet over medium-high heat until shimmering. Add the chicken breasts without crowding the pan. Cook for about 5 minutes per side until deep golden brown and cooked through to an internal temperature of 165 degrees F. Remove from the skillet and set aside to rest.

Step 3: Reduce heat to medium. Add the butter to the same skillet and let it melt, then add the finely chopped onion. Saute for about 4 minutes, stirring occasionally, until the onion is soft and translucent. Add the minced garlic and cook for 1 more minute until fragrant. Watch it closely so it does not brown.

Step 4: Pour in the chicken broth and use a wooden spoon to scrape up all the browned bits from the bottom of the pan. These bits carry a lot of flavor and are the foundation of a great sauce. Reduce heat to low and simmer for about 3 minutes.

Step 5: Stir in the heavy cream, Dijon mustard, whole grain mustard, and fresh thyme. Mix well and let the sauce simmer gently for about 5 minutes, stirring occasionally, until it thickens enough to coat the back of a spoon.

Step 6: Return the chicken to the skillet, turning each piece to coat in the sauce. Let everything simmer together on low for 5 minutes so the chicken absorbs the flavors fully. Garnish with fresh parsley and serve immediately.

What to Serve with French Mustard Chicken

This creamy, tangy chicken sauce calls for sides that can soak it up or offer a clean contrast to the richness.

Garlic Herb Chicken with Mashed Potatoes and Glazed Carrots: Buttery mashed potatoes are one of the best sides for French mustard chicken. The mild, creamy base soaks up every drop of that tangy mustard cream sauce and makes the whole plate feel cohesive and satisfying.

Easy Balsamic Chicken and Veggie Orzo: A lightly dressed orzo with roasted vegetables adds a fresh, herb-forward contrast that works beautifully next to the rich cream sauce without competing with it.

Easy Chicken Breast and Green Beans: Simple sauteed or steamed green beans are a natural pairing here. Their clean, slightly crisp texture provides a light counterpoint to the creamy mustard sauce.

Pan Seared Chicken Breasts with Lemon Mustard Sauce: If you love the mustard flavor profile in this recipe, this pan-seared lemon mustard version uses a brighter, citrus-forward approach that works great as a comparison dish or a weeknight alternative.

Creamy Lemon Chicken Pasta: For a heartier meal, serve this mustard chicken over or alongside a simple creamy pasta. The lemon notes in this pasta cut through the richness and keep the plate feeling bright and balanced.

One Pan Balsamic Chicken: If you enjoy skillet chicken dinners with bold sauces, this balsamic version is another weeknight winner that uses a similar one-pan technique and pairs well as a meal prep rotation companion.

french-mustard-chicken-creamy-dijon-skillet

Storage and Reheating Tips

Store leftover French mustard chicken in an airtight container in the refrigerator for up to 3 days. Make sure the chicken has cooled slightly before sealing and refrigerating, but do not leave it at room temperature for more than 2 hours.

To reheat, I recommend warming it gently in a skillet over medium-low heat. Add a small splash of chicken broth or heavy cream to loosen the sauce as it warms. Stir occasionally to keep the cream sauce smooth and prevent it from breaking. The microwave works in a pinch, but use low power and short intervals to avoid drying out the chicken.

Pro tip: the mustard cream sauce can be made up to 2 days ahead and stored separately. Reheat it on the stovetop over low heat and add the freshly cooked chicken right before serving for the best texture and flavor.

Frequently Asked Questions

Can I use chicken thighs instead of chicken breasts?

Yes, boneless skinless chicken thighs work well and stay even juicier. Increase the cook time to about 6 minutes per side and confirm an internal temperature of 165 degrees F before removing from the pan.

My sauce looks thin. How do I fix it?

Let it simmer uncovered a few minutes longer, stirring occasionally. If it is still too thin, mix 1 teaspoon of cornstarch with 1 tablespoon of cold water and stir it into the simmering sauce. It will thicken within 1 to 2 minutes.

Can I make this lighter by swapping the heavy cream?

You can use half-and-half for a lighter version, but the sauce will be thinner and less rich. Avoid using regular milk as it tends to curdle when simmered with mustard and broth.

Conclusion

French Mustard Chicken is the kind of recipe that delivers real restaurant-quality flavor with very straightforward steps. The creamy mustard sauce comes together in one pan and makes even a simple chicken breast feel like a proper dinner. Give this recipe a try this week and enjoy every flavorful, saucy bite.

french-mustard-chicken-creamy-dijon-skillet

French Mustard Chicken

Tender seared chicken breasts simmered in a rich creamy sauce made with Dijon mustard, whole grain mustard, garlic, onion, and fresh thyme. A one-skillet dinner ready in 45 minutes.
Prep Time 15 minutes
Cook Time 25 minutes
Rest Time 5 minutes
Total Time 45 minutes
Servings: 4 portions
Course: Dinner, Main Course
Cuisine: American, French
Calories: 400

Ingredients
  

  • 4 boneless skinless chicken breasts
  • salt and freshly ground black pepper to taste; season generously
  • 2 tbsp olive oil
  • 1 tbsp unsalted butter
  • 1 yellow onion finely chopped
  • 2 garlic cloves minced
  • 1 cup chicken broth low-sodium recommended
  • 0.5 cup heavy cream do not substitute milk
  • 3 tbsp Dijon mustard
  • 1 tbsp whole grain mustard
  • 1 tsp fresh thyme leaves
  • 1 tbsp fresh parsley chopped, optional garnish

Equipment

  • Large skillet
  • Wooden spoon
  • Tongs

Method
 

  1. Season the chicken breasts generously with salt and freshly ground black pepper on both sides.
  2. Heat olive oil in a large skillet over medium-high heat until shimmering. Add the chicken and cook for about 5 minutes per side until deep golden brown and cooked through to an internal temperature of 165 degrees F. Remove from the skillet and set aside to rest.
  3. Reduce heat to medium. Add butter to the same skillet and let melt. Add the finely chopped onion and saute for about 4 minutes until soft and translucent. Add minced garlic and cook for 1 more minute until fragrant.
  4. Pour in the chicken broth and scrape up all the browned bits from the bottom of the pan. Reduce heat to low and simmer for about 3 minutes.
  5. Stir in the heavy cream, Dijon mustard, whole grain mustard, and fresh thyme. Simmer gently for about 5 minutes, stirring occasionally, until the sauce thickens enough to coat the back of a spoon.
  6. Return the chicken to the skillet, turning to coat in the sauce. Simmer on low for 5 minutes until heated through and fully flavored.
  7. Garnish with fresh parsley and serve immediately with your choice of sides.

Notes

The sauce can be made up to 2 days ahead and stored separately. Reheat on low and add freshly cooked chicken before serving. For a lighter version, substitute half-and-half for heavy cream, noting the sauce will be thinner.

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