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Nothing says holiday dinner like a show-stopping roast, and this sear-roasted beef tenderloin is as impressive as it gets. Bonus: it’s simple to make. The sauce can be made mostly in advance, so there’s very little fussing at the last minute—and beef tenderloin, believe it or not, is one of the easiest things in the world to cook. If you’re worried that it’s an expensive cut and you may overcook it, I assure you: you don’t need to be an experienced cook to make a perfect beef tenderloin. All you need is a meat thermometer with a leave-in probe and remote monitor. That way you’ll know the roast is perfectly cooked without ever opening your oven—no poking, cutting, peeking, or guesswork involved….