Name: French Mustard Chicken Recipe
Prep time: 10 min
Cook time: 30 min
Total time: 40 min
Ingredients: 4 boneless, skinless chicken breasts; 1 teaspoon kosher salt; 1 teaspoon freshly ground black pepper; 1 teaspoon garlic powder; 1 teaspoon onion powder; 1 teaspoon dried thyme or dried Herbes de Provence; 2 tablespoons olive oil; 1 tablespoon butter; 1 small yellow onion, finely diced; 3–4 cloves garlic, minced; 1 cup low sodium chicken broth; 1 cup heavy cream; 2–3 tablespoons Dijon mustard; 1 tablespoon whole grain mustard; 1 teaspoon honey or sugar; 1–2 teaspoons fresh lemon juice; 2 tablespoons chopped fresh parsley or chives; extra salt and pepper to taste

French Mustard Chicken Recipe tastes creamy, tangy, and savory with a hint of garlic and herbs that makes you want to lick the plate clean. It works perfectly for busy weeknights or cozy date nights and usually takes about 40 minutes from start to finish. I first cooked this on a Tuesday when my fridge looked sad, and it still felt like a fancy bistro meal at my tiny kitchen table.

Why Make This French Mustard Chicken Recipe at Home

This French Mustard Chicken Recipe gives you restaurant-level flavor with simple ingredients you probably already keep in your kitchen. You get juicy chicken in a silky mustard cream sauce that feels special but still fits into a weeknight schedule.

You control the salt, the richness, and the quality of the ingredients, which makes it taste fresher than most takeout. Cleanup stays pretty easy too, since everything cooks in one skillet and the sauce hides any slightly over-browned bits like a charm.

My whole family asked for seconds of this French Mustard Chicken Recipe and scraped the pan clean, which never happens with chicken breast ★★★★★

Ingredients You Need

Chicken

4 boneless, skinless chicken breasts
- Pound them to an even thickness so they cook evenly.
- You can use boneless, skinless thighs instead for extra juiciness and richer flavor.

Seasoning

1 teaspoon kosher salt
1 teaspoon freshly ground black pepper
1 teaspoon garlic powder
1 teaspoon onion powder
1 teaspoon dried thyme or dried Herbes de Provence
- Herbes de Provence adds a classic French flavor and usually includes thyme, rosemary, and savory.

For Searing

2 tablespoons olive oil
1 tablespoon butter
- Use a good quality butter since it adds a lot of flavor to the sauce.

Aromatics

1 small yellow onion, finely diced
3 to 4 garlic cloves, minced
- Use jarred minced garlic in water if you need a shortcut, but fresh garlic gives better flavor.

Sauce Base

1 cup low sodium chicken broth
- Use a good boxed broth or homemade stock if you have it.
1 cup heavy cream
- You can swap half-and-half, but the sauce will taste a bit lighter and slightly thinner.
2 to 3 tablespoons Dijon mustard
- I like Maille or Grey Poupon for a smooth, balanced flavor.
1 tablespoon whole grain mustard
- This adds texture and a deeper mustard note; skip it if you only have Dijon and just add another teaspoon of Dijon.
1 teaspoon honey or sugar
- This tiny bit of sweetness rounds out the tang of the mustard.

Finishing Touches

1 to 2 teaspoons fresh lemon juice
2 tablespoons chopped fresh parsley or chives
Extra salt and pepper to taste

Pantry Shortcuts

Use pre-chopped frozen onions if you want to save time.
Use dried parsley if you do not have fresh; use 1 teaspoon dried instead of 2 tablespoons fresh.
Use pre-trimmed chicken cutlets to skip pounding.

Equipment List

Large heavy skillet or sauté pan (10 to 12 inches), preferably stainless steel or cast iron
Tongs
Wooden spoon or silicone spatula
Small whisk
Cutting board and sharp knife
Meat thermometer (helps avoid dry chicken)

Tips & Mistakes

Pat the chicken dry before seasoning so it browns instead of steaming.
Pound thick chicken pieces to an even thickness so they cook evenly and stay juicy.
Do not crowd the pan; brown the chicken in batches if needed so you get a nice golden crust.
Keep the heat at medium to medium high; very high heat can burn the fond and turn the sauce bitter.
Whisk the mustard into the cream and broth completely so the sauce turns smooth and silky.
Taste the sauce before adding more salt since mustard and broth already bring saltiness.
Add lemon juice at the end in small amounts; too much can overpower the mustard flavor.
Let the chicken rest in the sauce for a few minutes so it soaks up flavor and stays tender.
Do not boil the sauce hard after you add the cream; gentle simmering keeps it velvety.
Use a meat thermometer and pull the chicken off the heat at 165°F so it stays moist.

How to Make French Mustard Chicken Recipe

Step 1: Prep the Chicken

Season both sides of the chicken breasts with salt, pepper, garlic powder, onion powder, and dried thyme. Press the seasoning into the meat so it sticks. Set the chicken aside while you prep the onion and garlic.

Step 2: Brown the Chicken

Heat the olive oil and butter in a large skillet over medium high heat until the butter foams and starts to brown slightly. Add the chicken in a single layer and sear 4 to 5 minutes per side until golden and nearly cooked through. Move the chicken to a plate and keep it nearby; it will finish cooking in the sauce.

Step 3: Sauté the Aromatics

Lower the heat to medium. Add the diced onion to the same skillet and stir it in the browned bits at the bottom of the pan. Cook 3 to 4 minutes until the onion turns soft and lightly golden, then add the garlic and cook about 30 seconds until fragrant.

Step 4: Build the Sauce

Pour in the chicken broth and scrape up any browned bits with a wooden spoon since those bits carry a lot of flavor. Let the broth simmer for 2 to 3 minutes so it reduces slightly. Whisk in the heavy cream, Dijon mustard, whole grain mustard, and honey until the sauce looks smooth and creamy.

Step 5: Simmer and Season

Let the sauce gently simmer for 3 to 5 minutes until it thickens enough to coat the back of a spoon. Taste and add more salt or pepper if you want a stronger flavor. Stir in the lemon juice a little at a time until the sauce tastes bright but still creamy and balanced.

Step 6: Finish the Chicken in the Sauce

Nestle the chicken breasts back into the skillet, along with any juices on the plate. Spoon some sauce over the top of each piece. Simmer on low heat for 5 to 7 minutes until the chicken reaches 165°F inside and the sauce thickens to your liking.

Step 7: Garnish and Serve

Turn off the heat and sprinkle chopped parsley or chives over the chicken. Give the sauce a final taste and adjust seasoning if needed. Serve the chicken with plenty of sauce over your favorite side.

Variations I've Tried

I swap heavy cream with coconut cream when I cook for dairy free friends, and the slight coconut note actually pairs nicely with the mustard and herbs. I also use boneless, skinless chicken thighs when I want a richer, more forgiving cut that stays juicy even if it cooks a minute too long. Sometimes I stir in a spoonful of crème fraîche at the end instead of lemon juice for extra tang and a thicker sauce.

I add sliced mushrooms and a handful of baby spinach to the skillet when I want more veggies built into the meal. I also tried a lighter version with Greek yogurt stirred in off the heat; it tasted great but needed gentle stirring so the yogurt stayed smooth. When I feel spicy, I add a pinch of red pepper flakes or a little smoked paprika for a subtle kick.

How to Serve French Mustard Chicken Recipe

Serve this French Mustard Chicken Recipe over fluffy mashed potatoes, simple buttered noodles, or steamed rice so they soak up all that creamy mustard sauce. Add a side of green beans, roasted broccoli, or a crisp salad to keep the plate balanced. I also like it with crusty bread or warm flatbread to swipe through the sauce. If you pack leftovers for lunch, slice the chicken and spoon it over cooked grains with extra sauce for a quick bowl.

How to store

Store leftover French Mustard Chicken Recipe in an airtight container in the fridge for up to 3 to 4 days.
Chill the chicken and sauce completely before you move them to the freezer; then freeze in a freezer safe container or bag for up to 2 months.
Reheat gently on the stove over low heat, covered, and stir the sauce often so it turns smooth again; add a splash of broth or cream if it looks too thick.
You can also reheat in the microwave in short bursts, stirring between each burst so the chicken heats evenly and the sauce does not separate.