I'm new to cake decorating (absolutely loving it!!) and I have a question that I can't seem to find an answer to! I can find stuff relating to similar questions but not my specific question so sorry if this has been asked a thousand times but I can't find the answer and I need some help!
I have to make a rainbow layer cake for Saturday. My first question is can I make the sponges today (Wednesday) then stack and crumb coat tomorrow and then finish on Friday? Should I use a shortening buttercream?
Second question is, am I best to use ganache for the final coating or stick with buttercream?
Thank you so much for any help or advice that anyone can offer, it's very much appreciated xx