I am making 100 fairy cakes for my brothers wedding on saturday. they are in red cases, they need to be iced with white and then i'll add a little red butterflys made from red roll out icing (left to harden overnight) to the top. BUT..................
water icing will be a bit runny and set very hard (correct me if i'm wrong). someone suggested adding liquid glucose to it as it would make it glossy and set a little softer. Is this true? and if so how much do i add?