4 tablespoons olive oil
2 teaspoons coarse salt, plus more for seasoning
1 teaspoon freshly ground black pepper, plus more for seasoning
4 boneless center-cut pork chops (1 1/4 pounds), cut 3/4 inch thick
1 large onion, cut into 1/2-inch dice
4 green apples (such as Granny Smith), peeled, cored, and cut into 1/2-inch dice
1/2 cup cider vinegar
1/2 cup golden raisins
1 teaspoon ground ginger
1/4 teaspoon dry mustard
Pinch of cayenne pepper