In a large cast-iron skillet, cook the bacon oven medium-high for 6-8 minutes or until crispy. Using a slotted spoon, remove the bacon from the skillet and drain on a paper towel lined plate.  Add the Brussels sprouts to the skillet, stirring well to coat with the bacon grease. Reduce heat to medium and cook without stirring for 6 minutes or until the sprouts start to brown/caramelize. Stir in the salt and red pepper and continue to cook an additional 6 - 8 minutes or until Brussels sprouts are just tender. Stir in the cranberries, apple juice, and maple syrup. Cook 3 minutes, stirring to coat the Brussels sprouts. Add the cooked bacon and stir to combine. Serve immediately.