Originally Posted by jmpearl

How can I attach diamond shaped pieces to a buttercream iced cake? I am afraid they will slide off. Should the fondant be soft or should I let it dry before attaching? Thanks in advance for your help.

You can let the fondant pieces sit for several minutes (you can add a little tylose to speed up the process of them setting firmer) - you don't want them too soft b/c when you try to attach them, they are harder to work with if they are so soft. However, you don't want them too firm because they won't conform to the shape of you cake (example: putting a stiff straight fondant decoration on a round cake will cause the sides to stick out instead of taking the round shape of the cake). Let them sit just enough to hold their shape as you are positioning it on the cake, but not completely hard so that they are still flexible to conform to the cake (hope that makes sense). I've always and only ever used candy melts to attach - since I allow the cake to crust. That's the first thing I ever tried to use to attach fondant accents to BC and it's always worked so well, I've never cared to try anything else. Also, since the candy melts harden pretty quickly and solidly, a little goes a long way. HTH.