I made this square/cube cake and the cake turned out perfectly right out of the oven. I want to put fondant over it to give it that polished smooth look, but I am just terrible at icing cakes!
Question: Do I HAVE to ice the cake first before putting on the fondant? Can I just put the layer of Fondant directly onto the cake? I have found that nobody eats the fondant anyways and there is already layers of icing in the cake.
I've always put a layer of buttercream under the fondant.
It's up to you. You don't necessarily HAVE to put a layer of buttercream under fondant. You can stick the fondant to the cake with cornsyrup, an apricot glaze...or just put so thin a layer of buttercream that you don't risk messing up the shape. I mean see though thin.
The cake just needs to be tacky enough for the fondant to stick....what "glue" you use is entirely up to you.
You also have the option of putting a layer of marzipan on the cake before the fondant, then just use some cooled boiled water or apricot glaze to attach it.
The fondant needs something to stick to, however.