In a slow cooker add pork on yellow onion add ginger ale and cook on low for 5 hours
Pull pork from slow cooker and shred with two forks
Dump juice from the slow cooker, return pork and pour on that Kansas City barbeque sauce
Boil elbow macaroni for 9 minutes
Melt butter and add flour whisk until smooth in a skillet
Whisk in milk and slowly stir in cheese for the sauce
Place mac and cheese and pulled pork on the toasted bread, maybe add another slice of cheddar, why not?