Long name, easy recipe. I found this in the Food Network Kitchens Cookbook and made it for my husband and daughter (me too!). We loved it...the hoisin gives the mild beef tenderloin an exciting sweet and spicy flavor around the edges of the slices. The recipe, as written in the cookbook, said to roast to 125° (on a thermometer inserted in the center of the meat) for medium rare. I accidentally let it go to 127 and it did make a difference as it came out slightly more than medium-rare, though it was still really tasty. I don't think I'd let this go to medium, medium-well, or well-done. I used rice wine in place of the sherry. This quickly became a family favorite and one I will do whenever I find 2-lb. tenderloin roasts on sale. I served the beef and mushrooms simply, with a side of roasted sweet potatoes....it was a memorable meal!