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Amazing Chicken Wellington with Creamy Dijon Sauce

By anna Boncoeur On May 15, 2026

A golden-brown Chicken Wellington pastry, sliced open to reveal tender chicken, drizzled with creamy Dijon sauce and garnished with thyme.

You know, sometimes you just want to feel like you’ve stepped into a fancy restaurant without actually having to leave your kitchen. That’s exactly the feeling I get when I make this Chicken Wellington with Creamy Dijon Sauce. It sounds super impressive, right? But trust me, it’s totally doable, even on a weeknight if you’re feeling ambitious! I remember the first time I tried making it for a little anniversary dinner; my partner was blown away. The combination of that golden, flaky puff pastry wrapped around tender chicken, earthy mushrooms, and then that zingy Dijon sauce? Pure magic. It’s become my go-to for making any meal feel special. Plus, you can find tons of inspo for plating it beautifully if you check out places like Pinterest!

A perfectly baked Chicken Wellington with crispy golden pastry, sliced to reveal tender chicken and topped with luscious Creamy Dijon Sauce.

Why You’ll Love This Chicken Wellington with Creamy Dijon Sauce

  • Restaurant-Worthy, Home-Cooked: It looks and tastes like a million bucks, but you made it yourself!
  • Impressive Presentation: That golden puff pastry makes it a showstopper for any occasion.
  • Flavor Explosion: Juicy chicken, savory mushrooms, and a tangy Dijon sauce all wrapped up? Yes, please!
  • Easier Than You Think: Seriously, once you get the hang of it, it’s totally manageable.

Ingredients for Chicken Wellington with Creamy Dijon Sauce

  • For the Chicken Wellington:
  • 1½ pounds boneless, skinless chicken breasts
  • 1 teaspoon salt
  • ½ teaspoon black pepper
  • 1 teaspoon garlic powder
  • 2 teaspoons olive oil
  • 2 tablespoons butter (divided)
  • 8 ounces button mushrooms, finely chopped
  • 1 small shallot, finely minced
  • 2 garlic cloves, minced
  • 1 teaspoon dried thyme
  • 1 pound puff pastry sheets, thawed
  • 3 tablespoons Dijon mustard
  • 1 large egg, beaten
  • For the Creamy Dijon Sauce:
  • 1 tablespoon butter
  • 1 tablespoon finely minced shallot
  • 1 cup vegetable broth
  • ⅓ cup heavy cream
  • 1 tablespoon Dijon mustard
  • ¼ teaspoon salt
  • ¼ teaspoon black pepper

Step-by-Step Instructions for Perfect Chicken Wellington

Step 1: Okay, first things first, let’s get that oven preheated to 400°F and line a baking sheet with parchment paper. This helps stop anything from sticking later, which is always a win!

Step 2: Now, take your chicken breasts and slice each one in half horizontally. You want to end up with four pieces that are about ¾-inch thick. Pat them nice and dry with a paper towel – this helps them sear better – and then season both sides really well with salt, black pepper, and garlic powder.

Step 3: Heat up 1 tablespoon of butter and the olive oil in a big skillet over medium-high heat. Once it’s shimmering, carefully add your seasoned chicken. Sear them for about 2 minutes on each side until they get a lovely golden-brown color. They don’t need to be cooked all the way through yet, just get that nice sear going. Pop them onto a plate when they’re done.

Step 4: Add the other tablespoon of butter to that same skillet. Toss in your finely chopped mushrooms, minced shallot, garlic, and that dried thyme. Cook this mixture for about 6 to 8 minutes. You want the mushrooms to give up all their liquid and then get nice and browned. It should get pretty thick. Let it cool down for at least 10 minutes; you don’t want a super hot filling going into your puff pastry!

Step 5: Lightly flour your work surface and roll out those thawed puff pastry sheets. You want them to be even squares, and then cut them into four equal rectangles. Make sure each rectangle is big enough to completely wrap around one piece of chicken.

Step 6: Take one pastry rectangle and spoon a good layer of that cooled mushroom mixture right in the center. Then, place one piece of your seared chicken on top. Now, spread about 2 teaspoons of Dijon mustard all over that chicken piece. It adds such a fantastic zing!

Step 7: Time to wrap it up! Fold the pastry up and around the chicken, really pinching all the seams closed underneath. You want to make sure there are no gaps so nothing leaks out. Place them seam-side down on your prepared baking sheet. Give each one a nice brush with that beaten egg – this is what makes them get that gorgeous golden sheen when they bake.

Step 8: Pop your beautiful Chicken Wellingtons into the preheated oven and bake for 20 to 22 minutes. You’re looking for that pastry to be puffed up, deep golden brown, and super crisp. Your chicken needs to reach an internal temperature of 165°F, so a meat thermometer is your best friend here!

A golden-brown Chicken Wellington, cut open to reveal tender chicken, drizzled with creamy Dijon sauce.

Step 9: While the Wellingtons are baking, let’s whip up the sauce. Melt the 1 tablespoon of butter in a small saucepan over medium heat. Add the minced shallot and cook for just a minute until it’s fragrant. Pour in the vegetable broth and let it simmer for about 5 minutes until it’s reduced by about half.

Step 10: Stir in the heavy cream, the other tablespoon of Dijon mustard, and a pinch of salt and pepper. Let this sauce simmer gently for another 3 to 4 minutes. It should thicken up just enough to lightly coat the back of a spoon.

Step 11: Once your Chicken Wellington is out of the oven, let it rest for about 5 minutes. This is important so the juices redistribute. Then, plate them up and spoon that warm, creamy Dijon sauce generously over the top. Heaven!

What to Serve with Your Chicken Wellington

  • Roasted Asparagus: Just a simple toss with olive oil, salt, and pepper, then roasted until tender-crisp. It adds a lovely green color and a fresh, slightly earthy flavor that cuts through the richness.
  • Garlic Mashed Potatoes: Creamy, dreamy mashed potatoes are a classic for a reason. They’re the perfect vehicle for soaking up any extra Dijon sauce!
  • Simple Side Salad: A light mixed green salad with a lemon vinaigrette adds a refreshing contrast and a pop of brightness to the plate.

Storing and Reheating Your Chicken Wellington

So, what if you have a little leftover magic? Don’t you worry! You can store any remaining Chicken Wellington and that dreamy Dijon sauce in separate airtight containers in the fridge. They’ll be good for about 2-3 days. The trick to reheating is getting that pastry nice and crispy again. I honestly find microwaving makes it soggy, so skip that! Instead, pop the Wellington in a 375°F oven for about 15-20 minutes, or until the chicken is heated through to 165°F and the pastry is golden again. Just gently warm the sauce on the stovetop or in the microwave.

Frequently Asked Questions about Chicken Wellington

Can I make the Chicken Wellington ahead of time?

You can definitely prep the components ahead! You can make the mushroom filling and store it in the fridge for a day. You can also assemble the Wellingtons (except for the egg wash) a few hours before baking and keep them chilled on the baking sheet. Just add the egg wash right before they go into the oven. Baking straight from the fridge might add a few extra minutes to the cooking time, so keep an eye on it!

How do I make sure the chicken is cooked through and the pastry is crispy?

The key is to sear the chicken first so it starts cooking, and to make sure your mushroom filling isn’t too wet! A moist filling can make the bottom pastry soggy. Letting the filling cool is super important too. Using a meat thermometer is your best bet to ensure the chicken reaches that safe 165°F internal temperature without overcooking. Bake in a hot oven at 400°F as instructed – that high heat is crucial for puff pastry!

What if I don’t have shallots for the sauce?

No worries at all! If you don’t have shallots, you can easily substitute them with a finely minced yellow or white onion. Just use about half of a small onion, minced very finely. It will give you a similar aromatic base for your creamy Dijon sauce, though the flavor might be a tad stronger than with shallots. It’ll still be delicious!

Enjoy Your Homemade Chicken Wellington!

So there you have it! I hope you’re feeling inspired to whip up this amazing Chicken Wellington with Creamy Dijon Sauce. It’s truly a showstopper that’s way more achievable than you might think. Give it a try and let me know what you think in the comments – I’d love to hear how it turns out for you!

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A golden-brown Chicken Wellington with Creamy Dijon Sauce, showing a decadent cheese pull.

Chicken Wellington with Creamy Dijon Sauce


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  • Author: anna-Bonc
  • Total Time: 62 min
  • Yield: 4 servings 1x
  • Diet: Vegetarian

Description

Flaky puff pastry filled with juicy chicken and savory mushrooms, served with a creamy Dijon sauce.


Ingredients

Scale
  • pounds boneless skinless chicken breasts
  • 1 teaspoon salt
  • ½ teaspoon black pepper
  • 1 teaspoon garlic powder
  • 2 teaspoons olive oil
  • 2 tablespoons butter
  • 8 ounces button mushrooms finely chopped
  • 1 small shallot finely minced
  • 2 garlic cloves minced
  • 1 teaspoon dried thyme
  • 1 pound puff pastry sheets thawed
  • 3 tablespoons Dijon mustard
  • 1 large egg beaten
  • 1 tablespoon butter
  • 1 tablespoon finely minced shallot
  • 1 cup vegetable broth
  • ⅓ cup heavy cream
  • 1 tablespoon Dijon mustard
  • ¼ teaspoon salt
  • ¼ teaspoon black pepper

Instructions

  1. Preheat your oven to 400°F. Line a baking sheet with parchment paper.
  2. Slice each chicken breast in half horizontally to create 4 smaller pieces about ¾ inch thick. Pat dry and season both sides with salt, black pepper, and garlic powder.
  3. Heat olive oil and 1 tablespoon butter in a large skillet over medium-high heat. Sear the chicken for 2 minutes per side until lightly golden but not fully cooked. Transfer to a plate.
  4. Add the remaining tablespoon of butter to the skillet. Stir in the mushrooms, shallot, garlic, and thyme. Cook for 6 to 8 minutes until the mushrooms release their moisture and the mixture becomes thick and browned. Let cool for 10 minutes.
  5. On a lightly floured surface, roll the puff pastry sheets into even squares. Cut into 4 equal rectangles large enough to wrap each chicken piece.
  6. Spoon a layer of mushroom filling into the center of each pastry rectangle. Place a chicken piece on top and spread about 2 teaspoons Dijon mustard over each piece.
  7. Fold the pastry tightly around the chicken and pinch the seams closed underneath. Place seam side down on the prepared baking sheet. Brush each pastry with beaten egg.
  8. Bake for 20 to 22 minutes until the pastry is golden brown and crisp and the chicken reaches an internal temperature of 165°F.
  9. While the chicken bakes, make the sauce. Melt butter in a saucepan over medium heat. Add shallot and cook for 1 minute. Stir in vegetable broth and simmer for 5 minutes until reduced by about half.
  10. Add the heavy cream, Dijon mustard, salt, and black pepper. Simmer for 3 to 4 minutes until the sauce lightly coats the back of a spoon.
  11. Let the Chicken Wellington rest for 5 minutes before serving. Spoon warm Dijon cream sauce over each pastry.
  12. Refrigerate leftovers within 2 hours and reheat chicken to 165°F before serving again.

Notes

  • Keep the mushroom filling thick and cooled before assembling so the pastry stays crisp during baking.
  • Serve with roasted vegetables or mashed potatoes for a complete meal.
  • Prep Time: 40 min
  • Cook Time: 22 min
  • Category: Dinner
  • Method: Baking
  • Cuisine: American

Nutrition

  • Serving Size: 1 serving
  • Calories: 760
  • Sugar: 0
  • Sodium: 0
  • Fat: 45 g
  • Saturated Fat: 0
  • Unsaturated Fat: 0
  • Trans Fat: 0
  • Carbohydrates: 44 g
  • Fiber: 0
  • Protein: 40 g
  • Cholesterol: 0

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