This weekend I made my cake. As always, I made the same icing as I always do, the Wilton buttercream, using 1/2 butter-1/2 shortening. Well,for some reason, the icing would not crust over( yes, I used meringue powder) so I could smooth it and it seemed to settle to droop and a sag Tanks in advance,
did you maybe double some ingredients and forget to double something else?? I know i have done that before.