This Creamy Mustard Chicken with Roasted Potatoes and Broccoli is the ultimate comforting dinner! Juicy chicken thighs are pan-seared until beautifully golden and crispy, then served with a rich, creamy mustard peppercorn sauce. Alongside them are crispy rosemary roasted potatoes and perfectly roasted broccoli.

This delicious homemade dinner looks impressive but is surprisingly easy to prepare. It’s perfect for busy weeknights, cozy family dinners, or when you want something special without spending hours in the kitchen.

Why You’ll Love This Recipe

• Incredibly flavorful: The creamy mustard sauce combines garlic, Dijon mustard, herbs, and peppercorns.
• Crispy and juicy chicken: Golden chicken skin locks in moisture and adds wonderful flavor.
• Perfect side dishes: Rosemary potatoes and roasted broccoli make this a satisfying complete meal.
• Easy to prepare: Simple ingredients and straightforward cooking steps.
• Family-friendly: A comforting dinner everyone can enjoy.

Preparation and Cooking Time

• Prep Time: 15 minutes
• Cook Time: 35–40 minutes
• Total Time: 50–55 minutes
• Servings: 4
• Cuisine: American-inspired
• Course: Main Course

Ingredients

For the Chicken

• 4 bone-in, skin-on chicken thighs
• 2 tablespoons olive oil, divided
• 3 cloves garlic, minced
• 1 teaspoon fresh thyme
• 1 teaspoon fresh rosemary, chopped
• 1 teaspoon salt
• ½ teaspoon freshly ground black pepper

For the Creamy Mustard Sauce

• ½ cup heavy cream
• ½ cup chicken broth
• 1 tablespoon Dijon mustard
• 1 tablespoon whole-grain mustard
• 1 teaspoon green or mixed peppercorns, lightly crushed
• 1 tablespoon butter
• 1 teaspoon fresh thyme
• Salt and black pepper to taste

For the Roasted Potatoes

• 600 g (about 1⅓ lb) baby potatoes or Yukon Gold potatoes
• 1½ tablespoons olive oil
• 1 teaspoon dried rosemary
• ½ teaspoon garlic powder
• ½ teaspoon paprika
• Salt and black pepper to taste

For the Broccoli

• 2 cups fresh broccoli florets
• 1 tablespoon olive oil
• ¼ teaspoon salt
• A pinch of black pepper
• 1 teaspoon lemon juice (optional)

Step-by-Step Instructions

Step 1: Prepare the Ingredients

Preheat your oven to 425°F (220°C).

Wash the potatoes and cut them into evenly sized wedges. Cut the broccoli into bite-sized florets and mince the garlic.

Pat the chicken thighs completely dry with paper towels. This helps the skin become beautifully crispy during cooking.

Step 2: Season the Potatoes

Place the potato wedges in a large mixing bowl.

Add olive oil, rosemary, garlic powder, paprika, salt, and black pepper. Toss until every potato wedge is evenly coated.

Spread the potatoes in a single layer on a large baking sheet.

Step 3: Roast the Potatoes

Place the potatoes in the preheated oven and roast for approximately 30–35 minutes, turning halfway through.

They should become golden brown, crispy on the outside, and tender inside.

Step 4: Roast the Broccoli

Toss the broccoli florets with olive oil, salt, and black pepper.

Add them to the baking sheet during the final 15–18 minutes of roasting, using a separate section of the tray if space allows.

Roast until the edges are slightly charred and the stems are tender-crisp.

Step 5: Season and Sear the Chicken

Season the chicken thighs with salt, black pepper, thyme, and rosemary.

Heat 1 tablespoon olive oil in a large oven-safe skillet over medium-high heat.

Place the chicken thighs skin-side down and sear for 5–7 minutes until the skin becomes deeply golden and crispy.

Turn the chicken and cook for another 2 minutes. Transfer to a plate temporarily.

Step 6: Prepare the Creamy Mustard Sauce

Reduce the skillet heat to medium.

Add butter and minced garlic. Cook for approximately 30 seconds until fragrant.

Stir in the Dijon mustard, whole-grain mustard, crushed peppercorns, and chicken broth.

Scrape the bottom of the pan to release all those delicious browned bits.

Add the heavy cream and fresh thyme. Stir gently until the sauce is smooth and combined.

Step 7: Finish Cooking the Chicken

Return the chicken thighs to the skillet, placing them skin-side up.

Spoon some of the creamy mustard sauce around the chicken, keeping the crispy skin mostly uncovered.

Transfer the skillet to the oven and bake for approximately 12–20 minutes, depending on the size and thickness of the chicken thighs.

The thickest part of the chicken should reach an internal temperature of 165°F (74°C), measured with a food thermometer.

Step 8: Plate and Serve

Remove the skillet from the oven and let the chicken rest for about 5 minutes.

Arrange the crispy chicken thighs on serving plates alongside the rosemary roasted potatoes and broccoli.

Spoon the creamy mustard peppercorn sauce around the chicken.

Garnish with fresh thyme or rosemary and serve warm.

Enjoy every delicious bite!

Tips for the Best Results

• Dry the chicken: Patting the chicken skin dry is essential for achieving a crispy golden finish.
• Don’t overcrowd the pan: Give the potatoes and broccoli enough space to roast properly.
• Use fresh herbs: Fresh rosemary and thyme add wonderful aroma and flavor.
• Adjust the sauce: Add a little extra chicken broth if the sauce becomes too thick.
• Keep the skin crispy: Avoid pouring too much sauce directly over the chicken skin.
• Check the temperature: Always cook chicken to an internal temperature of 165°F (74°C).

Delicious Variations

Add Mushrooms: Sauté sliced mushrooms with the garlic before preparing the sauce.

Make It Spicier: Add a pinch of cayenne pepper or chili flakes.

Use Boneless Chicken: Boneless, skinless chicken thighs can also be used. Reduce the cooking time and check for an internal temperature of 165°F (74°C).

Make It Dairy-Free: Substitute dairy-free cream and plant-based butter.

Try Different Vegetables: Carrots, green beans, Brussels sprouts, or asparagus make wonderful additions.

What to Serve with Creamy Mustard Chicken

This meal is already wonderfully complete, but you can also serve it with:

• Fresh green salad
• Garlic bread
• Steamed green beans
• Buttered rice
• Warm dinner rolls

Storage and Reheating

Refrigeration: Store leftover chicken, sauce, potatoes, and broccoli in an airtight container in the refrigerator for up to 3–4 days.

Reheating: Warm the chicken and sauce gently in a covered skillet over low heat. Add a splash of chicken broth if needed. Reheat the potatoes and broccoli in an oven or air fryer to help restore their texture.

Freezing: Freeze the cooked chicken and sauce separately from the vegetables for up to 2 months for best quality. Thaw overnight in the refrigerator before reheating.

Frequently Asked Questions

Can I use boneless chicken thighs?

Yes! Boneless chicken thighs work beautifully. They cook faster, so check their temperature early to avoid overcooking.

Can I make the mustard sauce ahead of time?

Yes. You can prepare the sauce a day ahead and refrigerate it in an airtight container. Reheat gently and stir before serving.

Can I use regular mustard instead of whole-grain mustard?

Absolutely. Dijon mustard or a mild yellow mustard can be used, although whole-grain mustard adds a lovely texture.

How do I get crispy roasted potatoes?

Cut the potatoes into similar sizes, coat them lightly with oil, spread them in a single layer, and avoid overcrowding the baking tray.

How do I know when the chicken is cooked?

Use a meat thermometer to check the thickest part of the chicken. It should reach 165°F (74°C).

Final Thoughts

Creamy Mustard Chicken with Roasted Potatoes and Broccoli is a wonderful combination of crispy, juicy, creamy, and savory flavors. The golden chicken, rich peppercorn mustard sauce, fragrant rosemary potatoes, and tender broccoli make every plate feel like a special homemade dinner.

Whether you’re preparing a cozy family meal or hosting friends, this easy chicken dinner is sure to become a favorite!

If you try this recipe, leave a comment and let us know how it turned out. Enjoy!

Recipe Card

Recipe Name: Creamy Mustard Chicken with Roasted Potatoes and Broccoli

Prep Time: 15 minutes

Cook Time: 35–40 minutes

Total Time: 50–55 minutes

Servings: 4

Ingredients: Chicken thighs, potatoes, broccoli, heavy cream, chicken broth, Dijon mustard, whole-grain mustard, garlic, rosemary, thyme, olive oil, butter, peppercorns, salt, and black pepper.

Instructions: Season and roast the potatoes, roast the broccoli, sear the seasoned chicken, prepare the creamy mustard peppercorn sauce, finish cooking the chicken in the oven, and serve everything together.

Nutrition (Estimated Per Serving):

• Calories: 650 kcal
• Protein: 38 g
• Carbohydrates: 43 g
• Fat: 36 g
• Fiber: 6 g
• Sugar: 4 g
• Sodium: 650 mg

Nutrition values are estimates and may vary depending on ingredient brands and portion sizes.