Place pork in self-sealing plastic bag; mix together soy sauce, apple cider, garlic, and black pepper; pour over pork, seal bag and refrigerate overnight (4 to 24 hours). Remove pork from marinade (discard marinade), place in shallow pan and roast in 350 F oven for 35-45 minutes (about 20 minutes per pound), until an instant-read thermometer inserted in the center of the roast reads 145ºF. Remove from oven and let stand for 10 minutes.

Meanwhile, in a small bowl stir together apple butter, horseradish, and five-spice; taste for seasoning and add salt to taste.

On one side of 6 slices of bread, spread a few tablespoons of apple butter. On the other slices of bread, spread mustard.

Layer apple slices on the bread slices with mustard; place lettuce leaves on apple buttered slices.

Thinly slice pork roast and place about 2 ounces of pork on apple slices.

Close sandwiches and serve; or wrap securely and keep cool until serving.

Wrap and refrigerate any leftover pork roast.
Serving Suggestion: This is an easy-to-fix meal to have at home, but works for a picnic or at a tailgate party. Serve with sweet potato chips and warmed apple cider.