Place pork chops on a baking sheet or cutting board. Stir ancho chile powder, oregano, salt and pepper in a small bowl. Rub the pork chops with the spice mixture. Set aside.
Preheat the grill to medium high, or heat a grill pan over medium-high heat.
Brush the grill or grill pan with 1 tablespoon of vegetable oil. Add pork chops, cook for 7 to 8 minutes, then flip and cook on the other side for another 6 to 7 minutes. The meat should be at 145°F to 150°F if checked with a meat thermometer.
Transfer the pork chops to a plate to rest for about 5 minutes. Slice and serve with the Pickled Grape Salad.