Did exactly this today... was lovely! Felt like such a treat! Crumbled my peanut bar and made it the base... then poured the strawb' mousse in once whisked... and it set perfectly! Was deeee-lish!It's nice to be able to have a little more varity in textures etc, I did crumble a bar on the bottom too and had a cheeky cheesecake!
Enjoy... x