Etymology of "pigs in blankets"?

[onimolap]

it was always just bacon scrolls and sausages when I were a lass.

I first heard the description "pigs in blankets" at the end of Shrek. This year it's being used on NN as a fully assimilated term.

Where did it come from? Is it, as I suspect, a neologism from the USA (possibly a marketing thing?). Or a more established term creeping ever more widely? If from US, did it originate elsewhere (eg the Netherlands). Or is it something British (regional that I don't know, or domethink I've bizarrely never noticed before?)

I heard the term when i was a child, so its been about for a bit......dont know where it originates from

I've heard it for ages too. You also have devils and angels on horseback. No idea where it comes from though.

ON wiki pigs in blankets are wrapped in bacon in the uk and pastry in the US

Lol, don't mention angels on horseback to my DH

(should prob explain - it was the question he (or rather the audience) got wrong on millionaire. He left with £1000. He had been on the semi final of mastermind a couple of weeks earlier. He does not like it mentioned. Lol)

I don't know where the terms angels and devils on horseback come from either - but they're ones I've known life-long.

Any info on origin and spread of the terms very welcome. I'll be back in a while after I've consumed a few....