Recipe for PB Norman-Os?

[MazdaUK]

I have a new favourite snack a co-worker brought back from California - Norman-Os (Newman brand, like Oreos with peanut butter in them). Does anyone have a recipe for making them? Or do i just need to get plain cookies and put PB on them

ETA - I saw them online but it was £12 a box plus $6 postage hey, they're not THAT great