4 boneless pork loin chops (each about 7 ounces and 1 inch thick)
Kosher salt and freshly ground black pepper
2 tablespoons olive oil
1 cup apple cider or apple juice
1 tablespoon Dijon mustard
2 tablespoons unsalted butter, cut into 2 pieces
1 pound red-skinned sweet potatoes (yams), peeled and cut lengthwise in half, then cut crosswise into 2-inch pieces
2 Pink Lady or Fuji apples, cored and cut lengthwise into eighths
1 large fennel bulb, trimmed and cut lengthwise into eighths
2 sprigs of fresh rosemary, cut into 1-inch pieces
2 tablespoons olive oil
Kosher salt and freshly ground black pepper