Ladies and Gents, I present to you… beef tenderloin. This piece of tenderloin is also known as the tenderloin "butt" piece. A whole beef tenderloin is this piece plus a longer, narrower piece off the left side. But often, butchers sell this most desirable part all by itself. A whole beef tenderloin is delightful, too—the end piece is thinner and gets much more done than this thick center, so if you have a lot of whimpy beef eaters that don't like any pink, it can come in handy. But for this recipe, and because this is the form in which it’s commonly sold, we'll use the butt portion. The butt pieces are generally around 4 to 5 pounds. If you were to get a whole tenderloin, it would be in the 7 pound range. And tenderloin AIN'T cheap; definitely something to save for a special occasion, like Uncle Jimmy's retirement or Aunt Mabel's parole.Unwrap the meat from the plastic or paper wrapping and rinse well. Now, see all that fat on top? We're going to trim away some of that in order to remo...