Aha! Morcilla: that was it, in my omelette/cowpat! And I had thought morcilla was a type of mushroom!
Up here, people seem to favour Stornoway black pudding, but then they will go and put it with such delicacies as scallops: drowns all the flavour of the latter, as did the chorizo chucked all over an otherwise nice sea bass that I had in a posh restaurant in Edinburgh (mothers' day treat, so I couldn't say too much!)

And Sen and Will, the other Glasgow chippie of world renown is the Blue Lagoon, near Central Station: last time there was dusappointing: haddock like boot leather!