I made mini parfaits for a Thanksgiving open house this year. The mousse was delicious. I added 2 ozs of cream cheese and a Tbsp of plain yogurt to the sweetened whipped cream so it wouldn't separate. The one thing I did not like about this recipe was the pre-assembly. The cookie crumbs get mushy. It was much better a few days later, when I assembled more parfaits with the leftover mousse and fresh cookie crumbs which I served right away. I will make this again, but I'll allow the mousse to set in a big bowl and then build the parfaits right before serving. PS I was out of rum and just used water - still tasty!