I have an order for a 50th anniversary cake. And yes I have to put some gold on the cake. I am wanting to know if I put a buttercream border on the cake can I paint over it with the luster dust and also the writing put in white icing then paint over it with the luster dust?
If the icing is really cold you can, but you'd have to make a paint out of it with vodka and work fast. When the buttercream starts to soften up it will be difficult to put it on the cake without messing up the buttercream.