- 1 (2 pound) pork tenderloin, or more as needed
- 1 pinch garlic salt
- 1 pinch ground black pepper
- 3 tablespoons butter
- 3 Granny Smith apples, sliced, or more to taste
- 1/3 cup white sugar
- Preheat an outdoor grill for medium-high heat and lightly oil the grate.
- Generously season pork tenderloin with garlic salt and pepper.
- Cook pork on the preheated grill, turning twice on each side, until no longer pink in the center, 6 to 7 minutes per side. An instant-read thermometer inserted into the center should read at least 145 degrees F (63 degrees C). Remove pork from grill and cover with aluminum foil; let rest for 5 minutes. Slice pork and place on a serving platter.
- Melt butter in a skillet over medium heat; add apples. Cover skillet and cook for 5 minutes. Stir apples and sprinkle with sugar; reduce heat to low. Cover skillet and cook apples for 5 more minutes. Remove cover; cook and stir until apples are lightly browned, 2 to 3 more minutes. Spoon apples over sliced pork.