A Funfetti Rainbow Cake is usually made up of six layers ... Frost top and sides of cake with a thin layer of sky blue frosting. Smooth this frosting out using a cake scraper tool.

Funfetti Cake. I’m a sucker for frosting funfetti cake with classic American buttercream, but there’s no reason to not get more creative with this fun, buttery, vanilla cake. 16. Vanilla Cake ...