Pork Tenderloin with Onions and Apples

0 Season pork with salt and pepper. 
5 Let stand for 30 minutes if possible - or wrap and store in the refrigerator overnight. You can skip this step but it does make the meat more flavorful.
1 Stir together brown sugar, dijon mustard, herbes de provence, and bourbon. Rub mixture all over pork.
6 Heat oil in a heavy skillet over medium heat and brown the pork on all sides.
4 Add apples and onion and cover. Turn heat to low.
7 Cook until apples are tender and pork is done, stirring the apples and onions occasionally. This will take about 15 minutes. Current practice is for the pork to be a little pink in the center - 145F with an instant-read thermometer. This will ensure it's tender and juicy.
3 Let stand 5 to 10 minutes before slicing. Garnish with fresh parsley or thyme.