Lightly grease a shallow 2 1/2 to 3-quart baking dish.
Sprinkle the pork chops lightly with kosher salt and pepper. In a large skillet over medium heat, cook the pork chops until browned, about 4 minutes on each side. Remove to a plate and set aside.
While the pork chops are cooking, peel the onion and cut it in half lengthwise and slice the halves thinly.
Add the sliced onions to the pan used for the chops and cook, stirring frequently, until they are lightly browned.
Meanwhile, combine the sauerkraut, caraway seeds, applesauce, and apple juice. Spoon the sauerkraut mixture into the prepared baking dish.
Arrange pork chops atop the sauerkraut and then top with the browned onions. Cover the baking dish tightly with foil and bake for 20 minutes.
Remove the foil and continue cooking for 10 minutes, or until the chops reach 145 F.