Unicorn Birthday Cake : Unicorn Cake Roll – an easy cake roll recipe that is all things rainbow and UNIC… By Luana - March 5, 2020 0 1839 Unicorn Birthday Cake : Image : Description Unicorn Cake Roll – an easy cake roll recipe that is all things rainbow and UNICORN! Colorful cake and frosting, pudding whipped cream, sprinkles, marshmallows and all things glitter and fun.