SAUCE FOR BEEF TENDERLOIN RECIPES

Steps:

• Preheat oven to 350 degrees F (175 degrees C).
• Place roast into a shallow, glass baking dish. Pour soy sauce and melted butter over the tenderloin.
• Bake in preheated oven for 10 minutes, then turn the roast over, and continue cooking 35 to 40 minutes, basting occasionally until the internal temperature of the roast is at 140 degrees F (60 degrees C) for medium. Or, cook to your desired degree of doneness. Let meat rest for 10 to 15 minutes before slicing.

Steps:

• Sprinkle entire surface of beef tenderloin with coarse kosher salt. Place beef on rack set over large rimmed baking sheet. Refrigerate uncovered at least 24 hours and up to 36 hours.
• Melt 2 tablespoons butter in large saucepan over medium-low heat. Add shallots; sauté until soft, 3 minutes. Add Cognac, rosemary, and 1 teaspoon cracked pepper and cook until liquid evaporates, 1 minute. Add Port; bring to simmer. Add all of beef stock. Boil until reduced to 1 1/2 cups, about 20 minutes. Strain into medium saucepan, pressing on solids to extract as much liquid as possible. Discard solids in strainer. DO AHEAD: Can be made 24 to 36 hours ahead. Cool slightly, then cover and chill.
• Let beef stand at room temperature 1 hour before roasting. Position rack in center of oven and preheat to 425°F. Rub beef all over with oil; sprinkle with 2 tablespoons cracked peppercorns, pressing to adhere. Return beef to rack on baking sheet and roast until instant-read thermometer inserted into thickest part of meat registers 125°F for medium-rare (135°F to 140°F in thinnest part), about 30 minutes. Remove roast from oven and let rest 15 minutes.
• Bring sauce to boil; whisk in remaining 2 tablespoons butter. Season sauce to taste with salt and pepper.
• Cut off string from roast. Cut roast crosswise into 1/2-inch-thick slices; arrange on platter. Serve with sauce.
• Chateau Coufran 2003 (France, $23). The leathery, earthy notes and subtle fruit in this medium-bodied Bordeaux are perfect for the tenderloin.