Directions

1. In shallow dish marinate the pork in olive oil, vinegar and sage for 30 minutes.
2. Heat oven to 450 degrees F. (or prepare a medium hot fire in covered kettle-style grill). Remove pork from marinade, season with salt and black pepper to taste and place in shallow roasting pan; roast for 20-27 minutes, until internal temperature (measured with a meat thermometer) reads 145 degrees Fahrenheit, followed by a 3-minute rest time.
3. Let pork rest while sautéing apples: In a shallow bowl, dip apple slices into brown sugar, pressing to adhere sugar to apple surface. Melt butter in a large skillet over medium-high heat; cook apple slices for 2-3 minutes on each side until soft and golden. Serve sliced tenderloin with apples.