How far in advance may I put an edible image on a frosted cake without it "melting". I have a birthday cake due Sat. afternoon, and I want to frost and decorated this evening and put the image on. The image is a picture of a person. A little worried that it may melt into the frosting. The frosting is butter cream. What are your thoughts? Thanks.

When i have done one for a sat. event, using b/c frosting, I put the image on before it crust, after i have smoothed the buttercream. I do this on a friday, before Sat.hth

Thank you so much. Yes it helps.