Ingredients (serves 6)
For the Beef
- 1 center-cut beef tenderloin (about 2 to 2.5 lbs / 900 g – 1.2 kg)
- 2 tablespoons olive oil
- 2 teaspoons salt
- 1 teaspoon black pepper
- 2 tablespoons Dijon mustard
For the Mushroom Duxelles
- 1 lb (450 g) mushrooms (button or cremini), finely chopped
- 2 shallots, finely minced
- 2 cloves garlic, minced
- 2 tablespoons unsalted butter
- 2 tablespoons olive oil
- 2 tablespoons fresh thyme leaves (or 1 teaspoon dried)
- Salt and pepper, to taste
For Wrapping
- 8–10 slices prosciutto (or Parma ham)
- 1 sheet puff pastry (large, thawed if frozen)
- 1 egg yolk, beaten with 1 tablespoon water (egg wash)
- Flour, for rolling
Step-by-Step Instructions
1. Prepare the Beef
- Pat beef tenderloin dry and season all over with salt and pepper.
- Heat olive oil in a heavy skillet over high heat.
- Sear beef on all sides (including ends) until browned (about 2–3 minutes per side).
- Remove and let cool slightly. Brush the beef with Dijon mustard while still warm.
2. Make the Mushroom Duxelles
- In a pan, heat butter and olive oil.
- Add shallots and garlic; sauté 1 minute.
- Add mushrooms and thyme, cooking until mushrooms release their liquid and become dry, paste-like, and golden (about 10–12 minutes).
- Season with salt and pepper. Let cool completely.
3. Assemble the Layers
- On a sheet of plastic wrap, slightly overlap slices of prosciutto into a rectangle.
- Spread cooled mushroom duxelles evenly over prosciutto.
- Place seared beef on top, then carefully roll it up tightly with the plastic wrap, twisting ends to secure.
- Refrigerate 20–30 minutes to firm up.
4. Wrap in Puff Pastry
- On a lightly floured surface, roll puff pastry into a rectangle large enough to fully wrap beef.
- Remove beef from plastic wrap and place in the center of the pastry.
- Fold pastry around beef, trimming excess and sealing edges with egg wash.
- Place seam-side down on a parchment-lined baking sheet.
- Brush top with egg wash. Optionally, score lightly with a knife for decoration.
- Chill in fridge 15–20 minutes (helps pastry stay crisp).
5. Bake
- Preheat oven to 400°F (200°C).
- Bake for 35–40 minutes, or until pastry is golden brown and beef registers 120–125°F (49–52°C) for medium-rare (use a meat thermometer).
- Let rest 10 minutes before slicing.
🌟 Serving Suggestion
Slice into thick rounds and serve with:
- Red wine sauce or beef jus
- Creamy mashed potatoes
- Roasted vegetables (carrots, asparagus, or green beans)