Recalled your post Steve, after a friend shared the following link with me. Caution all, if you haven't eaten, or are still on a diet, this will have you salivating.
A Scouser Tries The Wigan Kebab and Smack Barm Pea Wet - YouTube
Interesting among the comments, a reference to miners using the bread to avoid touching the pie with unwashed hands, and discarding it (the bread). I recall a school visit, aged 15, down a South Wales coal mine, seeing two guys sat at a face on their break, drinking tea from flasks and with coal dust ingrained hands eating cake wrapped in paper.