I rarely go to town on the baked goodies I make - I'm always making them for someone else and I don't want to shortchange. Welp, a lot of people were shortchanged with these tasties: I made a couple of meals out of them!
The sweetened whipped cream was the only thing I guessed at - 2 pints of whipping cream beaten until stiff peaks form, adding powdered sugar to taste. I recommend erring on the less-sweet side for these so the sugar doesn't overwhelm the subtlety of the cake and ganache. Hard to go wrong though!