do you always have to use BF under fondant or alone?
thank you
Some people put a glaze over the cake and not Buttercream. I've seen chocolate, marmalade and apricot glazes used. The idea, I think, is more to control the crumbs and seal in the moisture than to "ice" the cake. You do need a surface the fondant will adher to, also. What do you have in mind to do? Lots of wonderful cakes have been made by people experimenting. Give it a go. Have fun. 
Most people don't like fondant. I always put as much icing on my cake as I would if there wasn't any fondant on it. I have never seen anyone eat all of the fondant on their piece of cake. They either peel it off right away or they get half way through it and can't handle anymore.
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