Garlicky Beef Tenderloin With Orange Horseradish Sauce

The allure of beef tenderloin pulls hard. When properly cooked until the surface is seared to a glistening mahogany and the center is tender and running with beefy juices, it is one of the most regal, festive and delectable things a cook can serve. As a finishing touch, serve the meat with a pungent, creamy horseradish sauce that is shockingly easy to prepare.