Invented by an Englishman but known as a Scottish dish? So what was it originally stuffed with - barley? Englishmen are not known for the eating of oats, as Doctor Johnson immortal definition makes clear.
Whatever it was stuffed with, once the other Englishmen tasted it, and pronounced it “offal.” They drove the originator out of England and into Scotland, feeling the meal was only fit for wild men and beasts. And I say that as a proud Scots’ descendant.
Dr. Johnson may have been unfamiliar with Geordies.