Hi,

I have used buttercream under fondant as well as chocolate ganache under fondant (seperatley) but am wondering if I could use them both together?  Cover the cake first with the ganache, let it set, then cover with a thin layer of buttercream to help the fondant stick.  When using ganache, I normally use a thin layer of apricot jam to hold the fondant but am looking for a change in taste.  I'd love to hear your thoughts/opinions...Thanks.

Hmmm, not sure and never tried anything like that.

I just ganache and right before putting on the fondant I use a pastry brush or spray bottle to brush or lightly mist the cake with hot water.

Yes you can, I do it all the time.