DO-AHEAD TIP: Marinate pork chops overnight or for at least 4 hours (see recipe).
Place pork chops in a large zipper-topped plastic bag.
In a medium bowl, whisk together next 10 ingredients (instant coffee through onion powder); pour mixture over pork chops and turn to fully coat. Seal bag and refrigerate overnight or for at least 4 hours.
At time of cooking, melt the butter in a large skillet over medium-high heat. Add marinated pork chops and cook for 5 to 7 minutes per side or until cooked through.