Actually, no concrete idea. I’d seen it used in recipes rather often on chef’s fb page. This is Funkster’s description (which is way more descriptive than the others):
”This has to be one of the nicest of all flavourings IMO, it's so enjoyable to
vape standalone & is a flavour unto itself, it's also dam near indescribable, even the description on the M&P site is vague at best, it's incredibly complex & very moreish, a cross between sweet & savory, kind of caramel & nutty, but also so much more in this, picking the elements in this out is an age old argument with many mixers as it's as said very hard to define, it has loads of body & mouthfeel yet remains airy lite feeling, all I can say is if you like
dessert profiles & have never tried this then you are missing out as it's both excellent & super versatile a solid 10/10 flavouring, I've vaped this from 6 to 15% & it preforms great regardless of the %, though I think I prefer it lower between 6 & 8% standalone”