I don’t ganache my cakes, always use buttercream. I crumb coat, then a good layer of bc icing. Let it crust, then cover with fondant. Never had a problem. Never came loose, lumpy or runny. You should have your bc as smooth as possible, then your fondant will be smooth, no imperfections showing through. If the weather is humid, I will make 1/2 butter, 1/2 shortening icing and add 1/2 recipe of royal icing. The icing dries very hard and smooth…it’s not going anywhere.
Hope this helps… :o)
Creativity is God's gift to us. Using our creativity is our gift back to God. Clarky's Cakes 😎
