“Buttercream can be stored easily—just wrap the buttercream up by itself in two layers of plastic wrap, then write the name of the buttercream on the outside with a permanent marker. Store up to 2–3 weeks, or maybe just one week if there’s fresh fruit in the buttercream. When you’re ready to use the buttercream, just place on your counter for about 20 minutes, then whip up again in your stand mixer.”