Why is Macaroni a big thing up here?

Wife from Glasgow lived down in London now and then mentioned wanting Macaroni easy enough pop tesco it was never the correct type.

We're up here and every shop been in Tesco Lidl Asda they seem to have a entire shelf of this Marshalls Macaroni apparently that is the correct one.

Whats the deal?

(Its very nice btw just curious why that specific brand etc is it historic?)