But i already made 2 rose cake designs ds july. One for a wedding & for a christening. Rose cake design is really my favorite. But i have a problem w/ this. The frosting on the sides are falling apart. On my first rose cake w/c was for d wedding, i used buttercream frosting( wilton) recipe but i used half shortening & half butter. Rose Birthday Cake | i am baker Please note: You are currently browsing img frosting modest munchies that is 3186x3000px in size. This image is listed in rose cake ideas category. Rose Birthday Cake i am baker, 3186x3000 in 3,764.83 KB.