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Low-Carb Breton Chicken

4.7 stars, average of 7 ratings

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Introducing Breton Chicken — a delightful, low-carb, and protein-packed dish that's as easy to make as it is delicious.

This recipe is not only perfect for a quick and satisfying midweek dinner, but it also shines as a meal prep option. Serve it alongside creamy cauliflower mash, zucchini noodles, or shirataki noodles to keep it low-carb.

With flavorful ingredients like chicken breasts, Dijon mustard, white wine, and creme fraiche, this dish is sure to impress. Top it off with a sprinkle of fresh thyme or parsley for an added touch of herbaceous goodness.

Let's dive into this mouthwatering recipe!

Recipe Tips

This recipe is made with skin-on chicken breasts which are a great high-protein option that are packed full of flavor. You can also use skin-on chicken thighs (boneless or bone-in). If you use any of these alternatives, make sure to adjust the cooking time. It will take less time if you use boneless chicken thighs, and about the same time if you use bone-in chicken breasts. Not a fan of chicken skin? You can also skinless chicken breasts or thighs.

If you're watching your carb intake, be mindful that leeks contain a moderate amount of carbs. If you prefer a lower-carb option, you can either reduce the amount of leeks or consider substituting them partially with spring onions in the Breton Chicken recipe. This way, you can customize the dish to suit your dietary preferences without compromising on taste. And don't forget that you can do that all in our app in a few simple steps. Easy peasy!

This easy low-carb recipe is best served with cauliflower mash, cauliflower rice, zucchini noodles, or with shirataki noodles for a lower carb option (here's how to prepare shirataki noodles).

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Hands-on Overall

Serving size chicken breast + sauce

Allergy information for Low-Carb Breton Chicken

✔  Gluten free
✔  Egg free
✔  Nut free
✔  Nightshade free
✔  Pork free
✔  Avocado free
✔  Coconut free
✔  Fish free
✔  Shellfish free
✔  Beef free

Nutritional values (per serving, chicken breast + sauce)

Net carbs9.4 grams
Protein33.7 grams
Fat40.2 grams
Calories554 kcal
Calories from carbs 7%, protein 25%, fat 68%
Total carbs11 gramsFiber1.6 gramsSugars4.3 gramsSaturated fat17.6 gramsSodium449 mg(20% RDA)Magnesium57 mg(14% RDA)Potassium507 mg(25% EMR)

Ingredients (makes 4 servings)

  • 2 large or 4 small chicken breasts, skin-on, boneless (600 g/ 1.3 lb)
  • sea salt and pepper, to taste
  • 2 tbsp extra virgin avocado oil or olive oil, divided (30 ml)
  • 2 tbsp butter or ghee (30 ml)
  • 1/2 medium yellow onion, diced (55 g/ 1.9 oz)
  • 2 cloves garlic, minced
  • 1 medium carrot, sliced (60 g/ 2.1 oz)
  • 1 large leek, sliced (150 g/ 5.3 oz)
  • 1 tbsp Dijon mustard or yellow mustard (15 g/ 0.5 oz)
  • 1/3 cup dry white wine (80 ml/ 2.7 fl oz)
  • 3 tbsp fresh lemon juice (45 ml)
  • 2/3 cup creme fraiche or sour cream (160 g/ 5.6 oz)
  • 1 tbsp fresh thyme or parsley
  • Optional: serve with cauliflower mash or zucchini noodles


  1. Season the chicken breasts with salt and pepper from both sides (use 1 small or 1/2 large chicken breast per each serving). Peel and slice the onion and carrot into thin slices. Slice the leek and mince the garlic. Low-Carb Breton Chicken
  2. Grease a skillet with 1 tbsp of avocado oil (or olive oil). Add the chicken breasts, skin side down, and cook on medium-high for about 3 minutes without moving. Turn on the other side, reduce to medium, and cook for another 12 to 15 minutes. Transfer to a plate and keep warm. (If you use a meat thermometer, the temperature should reach about 75 °C/ 165 °F.) Low-Carb Breton Chicken
  3. Grease the skillet where you cooked the chicken with the remaining 1 tbsp avocado oil and all of the butter (or ghee). Add the onion and cook on medium-high for 3 minutes, until fragrant. Add the garlic, carrot and leek. Cover with a lid and cook on medium for 8 to 10 minutes, until the carrot is tender. Low-Carb Breton Chicken
  4. Add the Dijon mustard (or yellow mustard), white wine and lemon juice. Stir through to combine. Add the creme fraiche (or sour cream) and cook until the sauce is thickened and creamy, for about 3 minutes. Add the fresh chopped herbs such as thyme or parsley. Low-Carb Breton Chicken
  5. Add back the chicken, skin side up, and cook for a few minutes just to heat through. You can optionally place the skillet under a broiler to crisp up the skin (make sure to use an oven-friendly skillet).
  6. Slice the chicken and serve. Eat with cauliflower mash, cauliflower rice, zucchini noodles, or with shirataki noodles for a lower carb option (here's how to prepare shirataki noodles). Low-Carb Breton Chicken

Ingredient nutritional breakdown (per serving, chicken breast + sauce)

Net carbsProteinFatCalories
Chicken, breast (with skin, raw)
0 g31.3 g13.9 g258 kcal
Salt, sea salt
0 g0 g0 g0 kcal
Pepper, black, spices
0.1 g0 g0 g0 kcal
Avocado oil, extra virgin
0 g0 g7 g62 kcal
Butter, unsalted, grass-fed
0 g0.1 g5.8 g51 kcal
Onion, brown (yellow), raw
0.9 g0.1 g0 g5 kcal
Garlic, fresh
0.5 g0.1 g0 g2 kcal
Carrot, fresh
1 g0.1 g0 g6 kcal
Leeks, (bulb and lower leaf-portion), raw
4.6 g0.6 g0.1 g23 kcal
Dijon mustard
0.1 g0.1 g0.1 g2 kcal
Wine, white, dry
0.4 g0 g0 g16 kcal
Lemon juice, fresh
0.6 g0 g0 g2 kcal
Crème fraîche
1.2 g1.2 g13.2 g126 kcal
Thyme, fresh
0 g0 g0 g0 kcal
Total per serving, chicken breast + sauce
9.4 g33.7 g40.2 g554 kcal

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Martina Slajerova
Creator of

Martina Slajerova

I changed the way I ate in 2011, when I was diagnosed with Hashimoto’s, an autoimmune disease that affects the thyroid. I had no energy, and I found it more and more difficult to maintain a healthy weight.

That’s when I decided to quit sugar, grains, and processed foods, and to start following a whole-foods-based ketogenic approach to food.

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