Cook the macaroni following pack instructions. Drain and mix with the grated Red Leicester, grated smoked cheese, double cream, maple syrup and smoked paprika. Season well, leave to cool, then put in the fridge to firm up.
Take 2 slices of sourdough bread and spread one with smoky barbecue sauce. Pile in the cold macaroni cheese, then close the sandwich and butter the outside generously. Fry in a dry pan for 4-5 mins on each side or until deep golden brown on the outside.