Beef Wellington Mushroom Duxelles (Printable)

A classic British dish featuring tender beef, mushroom duxelles, prosciutto, and crisp puff pastry.

# What You'll Need:

→ Beef

01 - 2.5 lb center-cut beef tenderloin, trimmed
02 - Salt and freshly ground black pepper, to taste
03 - 2 tbsp olive oil

→ Mushroom Duxelles

04 - 1 lb mixed mushrooms (cremini, button, or wild), finely chopped
05 - 2 shallots, finely chopped
06 - 2 cloves garlic, minced
07 - 2 tbsp unsalted butter
08 - 2 tbsp fresh thyme leaves, chopped
09 - Salt and pepper, to taste

→ Assembly

10 - 12 slices prosciutto
11 - 1 lb all-butter puff pastry, thawed if frozen
12 - 2 egg yolks, beaten with 1 tbsp water (egg wash)
13 - 2 tsp Dijon mustard

→ Optional

14 - 1 tbsp chopped parsley (for garnish)

# How-to Steps:

01 - Preheat oven to 425°F. Pat the beef tenderloin dry and season generously with salt and pepper. Heat olive oil in a heavy skillet over high heat. Sear the beef on all sides until browned, about 2–3 minutes per side. Remove from heat and let cool. Brush all over with Dijon mustard.
02 - In a large skillet, melt butter over medium heat. Add shallots and garlic; sauté 2 minutes. Add mushrooms and thyme. Cook, stirring often, until mushrooms release moisture and mixture is dry, 10–15 minutes. Season with salt and pepper. Cool completely.
03 - On a large piece of cling film, lay out prosciutto slices in a slightly overlapping rectangle. Evenly spread cooled mushroom duxelles over the prosciutto. Place the beef on top. Using the cling film, roll tightly into a log, wrapping the beef in the prosciutto and duxelles. Twist ends of the film to seal. Chill in fridge for 30 minutes.
04 - Roll out puff pastry on a lightly floured surface to a rectangle large enough to fully enclose the beef. Remove beef from cling film and place in center of pastry. Brush pastry edges with egg wash. Fold pastry over beef, sealing edges and trimming excess. Place seam-side down on a baking sheet lined with parchment. Brush all over with egg wash. If desired, decorate with pastry cutouts and brush again.
05 - Chill in fridge for 15 minutes for best results. Bake in preheated oven for 40–45 minutes, or until pastry is golden and a thermometer inserted into the center of the beef reads 122°F for medium-rare.
06 - Remove from oven and let rest 15 minutes before slicing. Garnish with chopped parsley if desired. Serve in thick slices.

# Expert Pointers:

01 -
  • The contrast between tender beef, earthy mushrooms, and buttery pastry is absolutely worth every step
  • Nothing beats the reveal when you slice into that golden crust and see the perfect pink center
  • It looks impossibly impressive but becomes surprisingly manageable once you understand the technique
02 -
  • The duxelles must be completely dry before spreading or youll end up with soggy pastry that falls apart
  • Chilling at every stage keeps the layers distinct and the pastry puffing up properly
  • Invest in a good instant-read thermometer because guessing doneness on expensive beef is heartbreak waiting to happen
03 -
  • Egg wash twice once before baking and once halfway through for the deepest, most professional-looking color
  • Let the Wellington rest for at least 15 minutes so the juices redistribute back into the meat

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