Reading some novel, I found a mention to this 18th century English dish, initially made for travelers and picnickers. Sounds intriguing, not very unhealthy, and possibly yummy. Perhaps it is one of the antecessors of that infamous apex of Scottish cuisine, the deep fried Mars bar.
https://www.jamieoliver.com/recipes/eggs-recipes/proper-scotch-eggs-with-lovely-scottish-cheese-and-pickle/
https://en.wikipedia.org/wiki/Scotch_egg