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Keto Dinner

Chicken Diane Style

Whenever I need a fast yet elegant keto dinner, this chicken Diane always delivers. The brandy-mustard sauce with tender mushrooms and juicy chicken feels restaurant-worthy, but it’s surprisingly simple to pull together on a weeknight. I love how the pan sauce thickens without any flour, keeping it perfectly low carb and full of rich, savory flavor that pairs beautifully with steamed greens.

15 min Prep time 25 min Cook time 40 min Total time 4 Servings 350 Calories
Chicken Diane Style

Ingredients

  • small onions chopped
  • lb fresh mushrooms
  • skinless boneless chicken breast halves
  • /2 tsp salt
  • /2 tsp ground black pepper
  • /2 tsp paprika
  • tsp chopped fresh chives
  • tsp dried parsley
  • /2 cup chicken broth
  • /4 cup brandy
  • tbsp Dijon mustard

Instructions

  1. Step 1

    I start by sautéing the chopped onions and sliced mushrooms in a large skillet over medium heat until they’re golden and fragrant. Then I scoop them out and set aside. Add the chicken breasts to the same skillet and let them cook for about 4 minutes on one side, until they develop a nice sear. Flip them over, then pile the mushroom-onion mixture right on top. Next, mix the salt, pepper, paprika, chives, and dried parsley in a small bowl and sprinkle it evenly over everything. In a separate bowl, whisk together the chicken broth, brandy, and Dijon mustard until smooth. Pour this liquid around the chicken (not over the topping, so it stays put) and bring it to a gentle simmer. Lower the heat, cover, and let it cook for 20 to 25 minutes. The chicken is done when it’s no longer pink inside and the sauce has thickened slightly. I like to spoon some of that rich, creamy-tasting sauce over the chicken when serving. For the best texture, make sure not to overcook the mushrooms in the first step—just tender. If your skillet isn’t large enough for all the chicken, sear in batches. The brandy cooks off, leaving only a mild, warm depth that complements the mustard perfectly.

Chef's Tip

I always use a good quality brandy—it makes a noticeable difference in the sauce’s richness. Also, letting the chicken rest for a few minutes after cooking locks in juices and gives the sauce time to meld. For an even thicker sauce, I sometimes whisk in a tablespoon of cold butter off the heat.

Storage Tips

Store leftovers in an airtight container in the fridge for up to 3 days. Reheat gently on the stovetop with a splash of broth to keep the sauce from breaking. I find the flavors meld even better after a day, making it a great meal prep option.

Variation Tips

For a dairy-free twist, swap any butter for ghee. Serve over cauliflower rice or zucchini noodles to keep it keto. If you’re out of brandy, dry white wine works, though the sauce will be less rich. I sometimes add a handful of spinach at the end for extra greens.

Frequently Asked Questions