Roast Beef Tenderloin with Caramelized Onion and Mushroom Stuffing

From America's Test Kitchen Season 8: Holiday Beef Tenderloin Dinner

Why this recipe works:

For a recipe for stuffed beef tenderloin with a deeply charred crust, a tender, rosy-pink interior, and an intensely flavored stuffing that stayed neatly rolled in the meat, we chose the almost perfectly cylindrical Châteaubriand and used a "double-butterfly" procedure—making two cuts so the… read more

For a recipe for stuffed beef tenderloin with a deeply charred crust, a tender, rosy-pink interior, and an intensely flavored stuffing that stayed neatly rolled in the meat, we chose the almost perfectly cylindrical Châteaubriand and used a "double-butterfly" procedure—making two cuts so the roast opened up into three parts (like a business letter). In this way the roast accommodated 50 percent more filling than a conventionally butterflied roast. We created a suitable crust for our tenderloin recipe in a shortened cooking time by coating the exterior of the roast with a layer of kosher salt an hour before searing, which allowed the salt to begin to break down the protein fibers in the outermost layer of meat, so that it browned quickly.

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Serves 4 to 6

The roast can be stuffed, rolled, and tied a day ahead, but don't season the exterior until you are ready to cook it. This recipe can be doubled to make two roasts. Sear the roasts one after the other, cleaning the pan and adding new oil after searing the first roast. Both pieces of meat can be roasted on the same rack.

Ingredients

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