I had the same problem. I had thin pork chops and googled on how to cook so they weren't so tough. The reply was to soak them in milk or buttermilk. Website is
www.food.com /recipe/milk-marinated-pork-chops-with-applesauce And it worked. The website also includes how to make applesauce if interested. In the south they us buttermilk and in other parts of the world they use yogart. Hope this helps.