Gluten Free Classic Beef Wellington

Total time2 hr 30 min

Prep time1 hr

Cook time30 min

A perfectly seared beef tenderloin gets brushed with Dijon mustard, then wrapped in a savory mushroom duxelles built from cremini, shallots, garlic, and fresh thyme, all cooked down with a splash of dry sherry until deeply concentrated. A layer of thinly sliced prosciutto wraps around the whole thing, adding a salty, savory edge that crisps beautifully as it bakes. The roast gets brushed with a rich egg yolk and cream wash and scored with a classic crosshatch before going into a hot oven, emerging deep golden brown with a juicy, rosy center. Resting it before slicing keeps every round tender and full of flavor, with clean, dramatic cross-sections perfect for a special dinner. It's an impressive centerpiece dish that works beautifully for a gluten free table, no fuss, all flavor.

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Ingredients

6 servings

For the beef

2 lb center-cut beef tenderloin, trimmed and tied
1 tbsp olive oil
Filippo Berio Olive Oil 25.3 fl oz Filippo Berio Olive Oil 50.7 fl oz Bertolli Cooking Olive Oil 50.72 oz Pompeian Olive Oil Classic Mediterranean - 16 Fl. Oz.Vigo® 100% Pure Olive Oil
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1 tsp kosher salt
½ tsp black pepper, freshly ground
1 tbsp dijon mustard

For the duxelles

1 lb cremini mushrooms, cleaned
2 shallots, roughly chopped
3 cloves garlic, roughly chopped
2 tbsp unsalted butter
1 tbsp fresh thyme leaves
2 tbsp dry sherry or dry white wine
¼ tsp kosher salt

For the assembly

6 thin slices prosciutto di parma (about 3 oz)
1 sheet (14 oz) frozen puff pastry, thawed
2 pasteurized egg yolks
1 tbsp heavy cream

For serving

flaky sea salt, for finishing (optional)

Instructions

1
Pat the beef tenderloin completely dry with paper towels, then remove any kitchen twine. Season all over with 1 tsp kosher salt and 1/2 tsp black pepper. Heat 1 tbsp olive oil in a large oven-safe skillet over high heat until just beginning to smoke. Sear the tenderloin on all sides, including the ends, for about 2 minutes per side, until a deep mahogany crust forms all over. Transfer to a plate and brush the entire surface with Dijon mustard while still warm. Let cool to room temperature, about 20 minutes.
2
While the beef cools, make the duxelles. Pulse the cremini mushrooms, shallots, and garlic in a food processor until very finely chopped, scraping down the sides as needed — the mixture should resemble coarse, damp crumbs. Melt 2 tbsp butter in the same skillet over medium-high heat. Add the mushroom mixture, thyme leaves, and 1/4 tsp kosher salt. Cook, stirring frequently, until all moisture has evaporated and the mixture is dry and beginning to stick to the pan, 10–14 minutes. Add the dry sherry and cook, stirring, until the pan is dry again, about 2 minutes. Spread the duxelles onto a plate and let cool completely.

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