Ok, I love the idea of this cake that I have seen many of on this site. However I need help. I want to do a french vanilla cake with chocolate ganache, however all the cakes I have looked at I don't see ganache as a filling. Can you use ganache as a filling or should I do a chocolate mousse filling and just put ganache on the top.
Thanks!

I don't know why you couldn't use ganache as a filling. You would have to let it set up some if you want more than just a thin layer, but it should work fine. It would be awfully rich, so I would just be careful about how much you use. Another option is whipped chocolate ganache, there's a recipe on this site, and it is to die for!

Yeah you could use ganache as a filling, one of my favorites I use the normal recipe for ganache (with dark chocolate the same amount of chocolate as of whipping cream), i let it cool and then with the mixer whip it. Works great for me! But is is indead a heavy filling so i wouldn't use much of it.

Ganache makes a wonderful filling. Make sure to let it cool. I would also use an icing damn.

I too have used ganache as a filling and loved it. Just a tip, i had to make like 20 of these for mothers day so i acutally used love letters instead of pirouette cookies and i got twice as many in a reusable container for the same price. And in my opinion they looked prettier. Also put them on as last minute as possible cuz they do go stale after a while. Good luck.

Rosita,
What are love letters? That sounds interesting.