Preheat the oven to 375°F.
Season the pork with salt and garlic powder and place on a baking pan.
Combine the vinegar and fig butter and generously brush it all over the pork.
Roast until the center of the pork reaches 145°F with a meat thermometer, about 25 to 30 minutes depending on the size of your pork and your oven.
Let it rest for 10 to 15 minutes before slicing into 8 pieces.
Top with parsley if desired.