Cranberry muscovite

I used to have a recipe for cranberry mousse, which I could have sworn was called Cranberry Muscovite: I'd copied it from someone else's book onto a scrap of paper, made it once, decided it was worth keeping and put it in a safe place.

And now, of course, I can't find it: it isn't in the scrapbook where I thought I'd left it, and it isn't in the box of stray recipe cards and leaflets. Even Google can't find a recipe for Cranberry Muscovite - this is what Google offered me instead.