Raisin Challah and Apple Stuffed Pork Loin

Preheat oven to 475 degrees F. Place the pork loin on a clean surface and cut into 1 side of the meat leaving a 1/2-inch border. Continue cutting the loin in a circular pattern, until the loin is able to be rolled out into a rectangle and is about 1/2-inch thick. Place a piece of plastic wrap or waxed paper on top of the pork and, using a meat mallet, pound the meat until it reaches an even thickness of about 1/2-inch. Season the top side of the pork loin with 1 1/4 teaspoons salt and 1/2 teaspoon pepper. Heat a medium skillet over medium heat. Add the bacon and cook until browned and crisp , about 7 minutes. Remove the bacon from the skillet with a slotted spoon and drain on paper towels. Increase the heat to medium-high and, when the bacon grease is hot, add the shallots and cook for 1 minute. Add the celery and cook for 1 to 2 minutes, stirring occasionally. Add the apples and cook an additional minute. Stir in the garlic and thyme and season with 1/4 teaspoon salt and 1/4 teaspoon black pepper. Cook for 1 to 2 minutes, or until the apples are slightly softened but still retain their shape. Remove from the heat and cool slightly before proceeding. Place the slightly cooled apple mixture into a large bowl and toss with the raisin challah bread cubes. Add the chicken stock and stir just until moistened. Spread the stuffing evenly onto the seasoned pork loin, leaving a 1-inch border. Roll the pork loin and the stuffing, jelly -roll style, being careful that the stuffing does not ooze out of the ends. Secure the loin with butcher's twine at 1 1/2 to 2-inch intervals and rub with 2 tablespoons olive oil. Place the loin in a small roasting pan. Place the roasting pan in the oven and cook for 15 to 20 minutes, until the top of the loin is lightly browned. Reduce the oven temperature to 325 degrees F and cook for 35 to 40 minutes, or until an instant-read thermometer registers 150 degrees F. Allow the roast to sit for 10 to 15 minutes before slicing. Spoon some of the Cider Sauce over the stuffed pork loin slices and serve warm.