A princess birthday cake is the perfect finale to a little girl's royal party. Nothing says "princess" more than a stunning castle. This Cake was a special order for a little 4 year old princess :-) Once upon a time... A little girl wished for a beautiful princess castle cake.... Moist Vanilla Sponge cake filled with layers of decadent Chocolate Buttercream and frosted with smooth Vanilla buttercream. A cake fit for a fairy princess