One-Pan Dijon Mustard Chicken and Mashed Potatoes – Cozy French Dinner for Busy Nights
This classic French Dijon mustard chicken is exactly the kind of cozy bistro dish you want on a cold Canadian or American evening: tender chicken simmered in white wine and fond de volaille, finished with grainy mustard and served with a silky mound of mashed potatoes and simple green beans.
This version is based on my YouTube video for Poulet à la moutarde, but I made a few important changes since publishing the video: more realistic cooking times, a better balance of mustard, and a more precise method for the sauce and mashed potatoes so you can reproduce it at home without stress.
If you love French comfort food recipes like maple chicken with creamy mashed potatoes or classic boeuf bourguignon, this Dijon mustard chicken will fit perfectly in your weeknight or Sunday dinner rotation.
Ingredients
For the mustard chicken
- 1500 g (3.3 lb) whole chicken, cut into 8 pieces, skin-on, bone-in
- 20 g (1 ½ tbsp) neutral oil (canola, grapeseed, etc.)
- 250 g (2 medium) yellow onions, finely sliced
- 200 ml (¾ cup + 1 tbsp) dry white wine
- 60 ml (¼ cup) cognac
- 700 ml (3 cups) unsalted chicken stock or fond de volaille
- 60 g (4 tbsp) Dijon mustard
- 30 g (2 tbsp) whole-grain mustard (Meaux or similar)
- 15 g (1 tbsp) beurre manié (soft butter mashed with an equal weight of flour – optional but recommended)
- 3 g (½ tsp) fine salt, plus more to taste
- 2 g (½ tsp) freshly ground black pepper, plus more to taste
If you don’t have beurre manié ready, you can use my homemade beurre manié recipe.
For the creamy mashed potatoes
- 1500 g (3.3 lb) starchy potatoes (Yukon Gold or Russet), peeled and cut in large chunks
- 2000 ml (8 cups) cold water
- 20 g (4 tsp) fine salt
- 2 g (½ tsp) ground turmeric (for color, optional)
- 90 g (6 tbsp) unsalted butter
- 200–250 ml (¾–1 cup) warm whole milk
- 1 g (¼ tsp) freshly grated nutmeg (optional)
- 2–3 g (½–¾ tsp) fine salt, to finish, or to taste
You can also look at my detailed homemade mashed potatoes recipe if you want extra tips and variations.
For the green beans
- 300 g (10 oz) thin green beans, trimmed
- 2000 ml (8 cups) water
- 20 g (4 tsp) salt
- 15 g (1 tbsp) butter (optional, for glazing)
For another classic French side, try my Parisian potatoes on another night.
Step-by-Step Instructions
1. Prepare the potatoes
- Place the potato chunks in a large pot, cover with the cold water, add the salt and turmeric.
- Bring to a gentle boil and cook until the potatoes are very tender when pierced with a knife.
- Drain, reserving a little of the cooking water if you want to keep the purée warm in a bain-marie later.
- Let the potatoes steam off in the pot for a couple of minutes to remove excess moisture.
You can stop here and finish the purée while the chicken sauce is reducing.
2. Brown the chicken
- Pat the chicken pieces dry and season them very lightly with salt and pepper (the sauce will reduce and concentrate).
- Heat the neutral oil in a large heavy skillet or sauté pan over medium-high heat.
- When the pan is properly hot, brown the chicken pieces on all sides until the skin is deeply golden. Work in batches if needed.
- Transfer the chicken to a plate and keep the pan on the heat.
For more easy chicken ideas, you can check my creamy mustard chicken with mushrooms or easy mustard chicken recipe.
3. Build the flavor base
- Remove excess fat from the pan if there is a lot, but keep all the browned bits on the bottom.
- Add the sliced onions. Cook over medium heat, stirring often, until the onions are soft and translucent, but not browned.
- Pour in the cognac and deglaze the pan, scraping up the fond. If you like, you can carefully flambé the cognac.
- Add the white wine and reduce by about half over medium heat.
4. Simmer the chicken
- Return the browned chicken pieces to the pan, skin side up.
- Pour in the chicken stock or fond de volaille to come almost to the top of the chicken (mouiller à hauteur).
- Bring to a gentle boil, then reduce the heat to maintain a quiet simmer.
- Cover and cook for about 25–30 minutes, turning the pieces once, until the chicken is fully cooked and very tender.
- Transfer the chicken to a warm plate, lightly cover with foil, and keep warm.
If you enjoy classic French chicken dishes, you might also like my chicken with vinegar or creamy Tuscan chicken.
5. Finish the mashed potatoes
- While the chicken simmers, mash the hot potatoes with the butter until smooth.
- Add the warm milk in several additions, stirring or folding with a spatula or wooden spoon until you reach a silky, fluffy texture.
- Season with salt and nutmeg to taste.
- Keep warm in a bain-marie with a lid until ready to serve.
For another cheesy pasta-style side, you can try my creamy mozzarella parmesan pasta on another day.
6. Reduce and finish the mustard sauce
- Increase the heat under the pan with the cooking liquid and onions.
- Simmer uncovered until the liquid reduces to a sauce-like consistency – you want about 250–300 ml (1–1 ¼ cups) of sauce.
- Lower the heat and whisk in the Dijon mustard and the whole-grain mustard.
- If you want a slightly thicker, more glossy sauce, whisk in the beurre manié and simmer for 1–2 minutes.
- Taste, then adjust seasoning with salt and freshly ground black pepper.
7. Blanch the green beans
- Bring the water and salt to a boil in a medium pot.
- Add the green beans and cook for 3–4 minutes until crisp-tender and bright green.
- Drain immediately and, if you want to keep the color very vivid, plunge them into ice water, then drain again.
- Just before serving, warm them in a small pan with the butter and a pinch of salt.
Green beans are great, but you can also serve this mustard chicken with homemade Caesar salad or a simple homemade Greek salad.
8. Reheat and glaze the chicken
- Return the chicken pieces and any accumulated juices to the mustard sauce.
- Spoon sauce over the top and gently heat for a few minutes over low heat until everything is hot and nicely coated.
Tips and Variations
- Use good fond: If you have homemade chicken stock or fond de volaille on hand, this is the perfect place to use it.
- Don’t rush the onions: They should be soft and sweet, not browned, to keep the sauce pale and elegant.
- Control the reduction: If the sauce reduces too much and becomes salty, add a splash of water or stock and adjust the seasoning.
- Add a touch of cream: For an even richer result, add 60 ml (¼ cup) of heavy cream at the end of the sauce, just before serving.
- Use thighs only: You can make this with 1.2 kg (2.6 lb) bone-in chicken thighs instead of a whole chicken.
If you’re into French comfort food, you may also enjoy my traditional gratin dauphinois or classic French onion soup.
Substitutions
- Chicken: Replace the whole chicken with bone-in, skin-on thighs or drumsticks. Adjust simmering time to 25–30 minutes.
- Wine: Use a dry white wine such as Chardonnay, Pinot Grigio or Sauvignon Blanc. For a non-alcoholic version, use extra stock and a dash of white wine vinegar.
- Cognac: You can use brandy or omit it entirely if you prefer.
- Mustard: Mix Dijon and whole-grain mustard to taste. If you like a sharper sauce, increase the Dijon to 75 g (5 tbsp).
- Potatoes: Yukon Gold give a creamy texture; Russets will be lighter and fluffier.
- Dairy-free: Use olive oil or dairy-free butter and plant-based milk for the purée, and skip the beurre manié or use a cornstarch slurry.
What to Serve with Dijon Mustard Chicken
This dish is a complete French-style meal with mashed potatoes and green beans, but you can easily build a full bistro menu around it:
- Starter: Creamy tomato soup or classic French onion soup
- Side salad: Homemade Greek salad or Caesar salad without mayonnaise
- Potatoes: Parisian potatoes or cheesy beef macaroni casserole another night
- Dessert: Moist dark chocolate cake or classic crème brûlée
FAQ
Can I make this mustard chicken in advance?
Yes. Cook the chicken completely, cool it in the sauce, then refrigerate up to 2 days. Reheat gently over low heat, adding a splash of water or stock if the sauce has thickened too much.
Can I freeze Dijon mustard chicken?
You can freeze the chicken and sauce together for up to 3 months. Thaw overnight in the refrigerator and reheat gently. The texture of the sauce may change slightly but will still taste delicious.
Can I use boneless chicken?
Yes. Use 1200 g (2.6 lb) boneless, skinless thighs. Brown them quickly and simmer for about 15–18 minutes in the sauce. The result will be slightly less rich but still very tasty.
How strong is the mustard flavor?
With the quantities here, the sauce is clearly mustard-forward but not aggressive. If you want a milder flavor, reduce the Dijon to 45 g (3 tbsp) and keep the 30 g of whole-grain mustard.
Can I make this recipe without alcohol?
Yes. Replace the wine and cognac with extra chicken stock and a tablespoon of white wine vinegar or apple cider vinegar to bring acidity to the sauce.
One-Pan Dijon Mustard Chicken and Mashed Potatoes – Cozy French Dinner for Busy Nights
Ingredients
Mustard chicken
- 1500 g 3.3 lb whole chicken, cut into 8 pieces, skin-on, bone-in
- 20 g 1 ½ tbsp neutral oil
- 250 g 2 medium yellow onions, finely sliced
- 200 ml ¾ cup + 1 tbsp dry white wine
- 60 ml ¼ cup cognac
- 700 ml 3 cups unsalted chicken stock or fond de volaille
- 60 g 4 tbsp Dijon mustard
- 30 g 2 tbsp whole-grain mustard (Meaux)
- 15 g 1 tbsp beurre manié (optional)
- 3 g ½ tsp fine salt, plus more to taste
- 2 g ½ tsp freshly ground black pepper, plus more to taste
Creamy mashed potatoes
- 1500 g 3.3 lb potatoes, peeled and cut in chunks
- 2000 ml 8 cups cold water
- 20 g 4 tsp fine salt
- 2 g ½ tsp ground turmeric (optional)
- 90 g 6 tbsp unsalted butter
- 200 –250 ml ¾–1 cup warm whole milk
- 1 g ¼ tsp freshly grated nutmeg (optional)
- 2 –3 g ½–¾ tsp fine salt, to taste
Green beans
- 300 g 10 oz green beans, trimmed
- 2000 ml 8 cups water
- 20 g 4 tsp salt
- 15 g 1 tbsp butter
Instructions
- Place the potatoes in a pot with the cold water, salt and turmeric. Bring to a boil and cook until very tender. Drain and let steam dry.
- In a large pan, brown the seasoned chicken pieces in the neutral oil until golden on all sides. Remove and set aside.
- In the same pan, cook the sliced onions over medium heat until soft and translucent. Add cognac to deglaze, then white wine and reduce by half.
- Return the chicken to the pan and pour in the chicken stock to almost cover. Simmer gently, covered, for 25–30 minutes, until the chicken is cooked through and tender.
- Transfer the chicken to a warm plate. Reduce the cooking liquid until you have about 250–300 ml (1–1 ¼ cups) of sauce.
- Whisk in the Dijon and whole-grain mustard. Add the beurre manié if using and simmer 1–2 minutes until slightly thickened. Taste and adjust seasoning with salt and pepper.
- Mash the hot potatoes with the butter, then add the warm milk until smooth and creamy. Season with salt and nutmeg to taste. Keep warm.
- Blanch the green beans in salted boiling water for 3–4 minutes, then drain. Glaze with butter and a pinch of salt just before serving.
- Return the chicken and its juices to the mustard sauce and warm gently, spooning sauce over the top.
- Serve the chicken over a bed of mashed potatoes, with green beans on the side and plenty of mustard sauce spooned over everything.
Video
Notes
FAQ
Can I make this mustard chicken in advance?
Yes. Cook the chicken completely, cool it in the sauce, then refrigerate up to 2 days. Reheat gently over low heat, adding a splash of water or stock if the sauce has thickened too much.Can I freeze Dijon mustard chicken?
You can freeze the chicken and sauce together for up to 3 months. Thaw overnight in the refrigerator and reheat gently. The texture of the sauce may change slightly but will still taste delicious.Can I use boneless chicken?
Yes. Use 1200 g (2.6 lb) boneless, skinless thighs. Brown them quickly and simmer for about 15–18 minutes in the sauce. The result will be slightly less rich but still very tasty.How strong is the mustard flavor?
With the quantities here, the sauce is clearly mustard-forward but not aggressive. If you want a milder flavor, reduce the Dijon to 45 g (3 tbsp) and keep the 30 g of whole-grain mustard.Can I make this recipe without alcohol?
Yes. Replace the wine and cognac with extra chicken stock and a tablespoon of white wine vinegar or apple cider vinegar to bring acidity to the sauce.Useful Links
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