It's DS2's christening tomorrow and I'm attempting a roulade for the first time ... I've made and rolled the sponge and it's cooling BUT do I fill it now (24hrs in advance) or wait til the morning ... and if I wait til the morning will it crack/break when I unroll it and it's totally cold? BTW, the filling is a marscapone/icing sugar mixture with passionfruit spread on top and I guess I'm wondering whether it'll go soggy overnight.
Anyone around to advise?
Thanks!