Did this tonight for H's birthday. I think the idea is okay but it needs some major changes.
It looks as though you haven't tried this Meryl, so I'll provide my comments now.
It comes off as a chocolate cream mousse cake. The PB is all but lost. No, in fact, lost.
As I was creating the first layer, I thought that the addition of whipped cream needed to stop after the first addition. At this point, I really liked what I tasted. The rest of the cream was not necesary.
The chocolate layer is too much for me. It drowned the PB. There was no flavour of PB at all. Normally, I would use Callebaut for chocolate preparations but this time, I used regular Baker's.
So I would do something 'like' this again, but with the PB layer stopping with one addition of cream, maybe 1 cup whipped. Then just a glaze of chocolate to hold it together.
Thaks Meryl. It introduced me to Oreo cookie crumbs. Didn't know they were available and that's all I could find for the bottom. But they were good as a bottom layer.
Everything is an adventure and can only contribute to our eventual ability to just wing it.