Hi

Probably a really stupid question - I am making DS's birthday cake for his party tomorrow. Am planning on icing the cake tonight when he is asleep. Can i make the butter icing now and then ice tonight in 5-6 hours time or should I only make the icing right before I will be putting it on the cake?

Also should I refridgerate iced cake overnight or just leave out - perhaps losely covered?

TIA

NW3