White Vanilla Butter Cake with Purple Flowers - Snow White Vanilla Butter Cake with Raspberry Buttercream Filling and Vanilla Buttercream Frosting. Fresh flowers include Alstromeria, Mums, Carnations, Daisies, and Fern Fronds. Sorry for the bad photo - camera batteries died before I could get a photo of the cake displayed on the party table. 6-14-08.