Frost Form® on Instagram: "How to make a Marbled Cake with American Buttercream 🩷💜 The process is the same for all Buttercreams- Take out about 1/3 of your buttercream and microwave until completely melted (about 20-25 seconds) and stir back in Repeat as many times as needed until the buttercream slides easily off the spatula Then just alternate small scoops of buttercream colors (we suggest 3-4 colors- work quickly!) Pipe a small amount of buttercream on 3-4 sides then fill to the…