I'm making a birthday cake in a couple of weeks and plan to make the figures in advance of making the cake so they can dry (thanks to the advice here!).
How do you keep the sugar paste in good condition for when you use it next? I anticipate a few days at least between opening the packets and completing the cake. When I've done this before the sugar paste goes hard very quickly and appears unusable. Previously I've wrapped it up in cling film and put it in a plastic box, but this hasn't worked very well.