This pork and sauerkraut meal is cooked in the oven with apple and onion until the pork is tender and flavorsome for a hearty New Year's dinner.
Preheat the oven to 400 degrees F (200 degrees C).
Place pork into a large roasting pan. Season with salt and black pepper. Mix sauerkraut, water, onion, and apple in a large bowl until combined; pour over pork.
Roast pork in the preheated oven until heated through, about 1 hour. Reduce oven temperature to 300 degrees F (150 degrees C). Continue roasting until an instant-read thermometer inserted into the center of pork reads at least 145 degrees F (63 degrees C), about 2 hours more; add more water as needed if sauerkraut mixture begins to look dry.
Remove from the oven and allow pork to rest for about 10 minutes in a warm area before slicing.