Cook the bacon, apple and onion in a skillet over medium heat until the

bacon is crisp. Remove to a bowl. Refrigerate until cool.

Cut a pocket in the pork tenderloin. Combine the bacon mixture and the

cheese and mix well. Stuff into the pocket. Tie the pocket closed with 4

pieces of butcher's string. Place in a roasting pan. Roast at 350

degrees for 35 minutes or to 160 degrees on a meat thermometer. Let stand

for 10 minutes before carving.