Slice the pork 1cm thick, then lightly pound the slices to make escalopes. Season both sides of the meat with pepper.
Heat the oil and butter in a heavy frying pan and then add the pork and garlic. Brown the meat on one side, turn and cook until golden on the other, about two minutes on each side. Do not overcook. Remove from pan.
Add the apple slices to the pan and cook until golden on both sides. Add the wine and leave to simmer for five minutes.
Return the pork to the pan and season with salt to taste.