Beef Wellington with Mushroom Duxelles and Prosciutto
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Everyone leans in when you slice this open: golden pastry, a ring of prosciutto, a rosy middle. Chill it twice, watch the thermometer, and give it fifteen minutes to rest while the table fills up.
The short version
Sear a 2-pound tenderloin and chill it, cook mushrooms to a dry paste, roll the beef in prosciutto and duxelles, wrap in puff pastry, and chill again. Bake at 400°F to 120°F inside, about 40 minutes, then rest 15 minutes.
What makes ours better
what we fixed so you don’t have to
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Cook the duxelles until it's a dry paste. Wet mushrooms are the number one cause of soggy pastry. Cooking them until the pan is dry and the mushrooms look like jam takes 15 minutes and concentrates the flavor.
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Wrap the beef in prosciutto. Thin slices of prosciutto form a salty barrier between the duxelles and the pastry, so the juices don't soak through, and they season the meat.
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Mustard on the beef, and chill before baking. Mustard glues the duxelles to the meat and adds tang. Chilling the wrapped roast firms the pastry so it bakes crisp before the beef overcooks.
What you need
the usual suspects
- Center-cut beef tenderloin2 pounds
- Dijon mustard2 tablespoons
- Cremini mushrooms1 pound
- Unsalted butter2 tablespoons
- Shallots2 medium
- Fresh thyme leaves2 teaspoons
- Dry sherry or Madeira2 tablespoons
- Thin prosciutto8 slices
Beef
Duxelles
Wrap
yes, all of the butter
Steps
nobody opens the oven door. looking at you, Dad.
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Season and sear the beef
Pat the tenderloin very dry and season all over with the salt and pepper. Heat the oil in a large skillet over high heat until it just begins to smoke. Sear the roast on all sides, including the ends, until deeply browned, 4 to 5 minutes total. Move it to a plate, remove the twine, and brush all over with the mustard. Chill at least 30 minutes.
Sear fast and hard. The goal is color on the outside, with the middle still raw.
About 5 min. Cook mode has a timer for this step.
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Cook the duxelles dry
Pulse the mushrooms in a food processor until finely chopped, like coarse crumbs, or chop by hand. Melt the butter in the same skillet over medium-high heat and cook the shallots 2 minutes. Add the mushrooms, thyme and salt and cook, stirring, until the liquid evaporates and the mushrooms are dark and pasty, 12 to 15 minutes. Add the sherry and cook until gone. Spread on a plate and cool completely.
If it's still wet, keep cooking. This is the step that keeps the pastry crisp.
About 15 min. Cook mode has a timer for this step.
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Wrap with prosciutto and duxelles
Lay a large sheet of plastic wrap on the counter. Overlap the prosciutto slices into a rectangle slightly longer than the beef. Spread the duxelles evenly over the prosciutto, set the beef at one edge and use the plastic to roll it up tight, twisting the ends like a candy wrapper. Chill 30 minutes.
About 30 min. Cook mode has a timer for this step.
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Roll out the pastry
On a lightly floured counter, roll the puff pastry into a rectangle about 14 by 11 inches. Unwrap the beef and set it near one long edge. Whisk the yolk with the cream and brush a little along the far long edge, then roll the beef up in the pastry, pressing the seam closed. Trim extra pastry at the ends and tuck them under.
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Chill, wash and score
Set the roast seam side down on a parchment-lined baking sheet. Chill 30 minutes. Brush with a coat of the egg wash, score shallow diagonal lines with the tip of a knife, and sprinkle with flaky salt. Heat the oven to 400°F with a rack in the center.
Cut shallow only. Cutting through the pastry lets juices leak.
About 30 min. Cook mode has a timer for this step.
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Bake to temperature
Bake until the pastry is deep golden and a thermometer pushed through the end into the center of the beef reads 120°F for medium-rare (it will rise to about 130°F while resting), 35 to 45 minutes. Start checking at 30 minutes. If the pastry browns too fast, tent it with foil.
About 40 min. Cook mode has a timer for this step.
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Rest and slice
Rest the Wellington on the pan for 15 minutes. Slice with a serrated knife into 1-inch slices, using a sawing motion and no pressure. Serve immediately.
About 15 min. Cook mode has a timer for this step.
Good to know
the stuff I’d tell you over the phone
- Buy a center-cut tenderloin of even thickness. Ask the butcher for the middle section, because tapered ends overcook.
- Make it ahead by assembling through step 3 up to a day before. Roll in pastry the day you bake, or wrap and chill the full roast up to 8 hours. Bake straight from the fridge and add 5 to 10 minutes.
- Doneness temperatures to pull at are 115°F for rare, 120°F for medium-rare, 130°F for medium. Tenderloin has no fat to forgive overcooking.
- Serve with a red wine pan sauce or horseradish cream, and roasted potatoes or green beans. See red wine braised short ribs for another special-occasion beef dish.
- Storage. Refrigerate leftovers up to 3 days. Reheat slices on a rack in a 300°F oven for 10 to 15 minutes. The pastry will not be as crisp the second day.
Questions, answered
the questions my cousins text me
How do I keep beef Wellington from getting soggy?
Cook the duxelles until it's a dry paste, wrap the beef in prosciutto, chill the wrapped roast before baking, and rest it 15 minutes before cutting.
What temperature should beef Wellington be?
Pull it at 120°F for medium-rare. It will climb to about 130°F as it rests. For medium, pull at 130°F.
Can I make beef Wellington ahead of time?
Yes. Assemble and wrap it up to 8 hours ahead, keep it chilled, and bake from the fridge with a little extra time. Check with a thermometer, not the clock.
Can I use a smaller or larger roast?
A 3-pound roast needs a 1-pound sheet of puff pastry or two sheets overlapped, and 45 to 55 minutes to bake. Go by temperature.
Can I freeze beef Wellington?
Yes, unbaked. Freeze it wrapped tightly up to 1 month, then thaw in the fridge overnight and bake as written.
From the table
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Published October 29, 2026.