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1
Preheat the oven to 425.
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2
Rub the tenderloins all over with olive oil and season with salt and the cracked peppercorns.
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3
Set the tenderloins on a large, heavy-gauge rimmed baking sheet, allowing space between them, and roast in the upper third of the oven for 20 minutes.
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4
In a medium bowl, mix the bread crumbs with the Parmesan, anchovies, garlic, thyme and parsley.
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5
Blend in the 2 tablespoons of olive oil and season the crumbs with salt and pepper.
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6
Carefully pack the bread crumbs on top of each tenderloin.
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7
Lower the oven temperature to 400 and roast the meat for about 20 minutes, or until an instant-read thermometer inserted in the center registers 130 for medium-rare.
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8
Using 2 long spatulas, transfer the tenderloins to a carving board and let rest for 15 minutes.
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9
Meanwhile, set the baking sheet over 2 burners.
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10
Add the wine and bring to a simmer over moderately high heat, scraping up any browned bits from the bottom.
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11
Strain the wine into a medium saucepan and simmer over high heat until reduced to 1/2 cup.
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12
Whisk in the veal demiglace and bring to a boil; simmer for 3 minutes.
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13
Remove from the heat and let the sauce stand for 5 minutes.
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14
Whisk in the butter, 1 tablespoon at a time, and season the sauce with salt and pepper.
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15
Using a gentle sawing motion, carve the beef tenderloins into 1/2-inch-thick slices and serve, passing the remaining sauce at the table.