We admit it sounds kind of gross that you need to use glue to put your cake together, but we promise this is not even close to your childhood Elmer's. Rather, cake glue is a special concoction made of water and a thickener. These ingredients make the cake glue edible.
Making cake glue is especially important if you're planning to cover your entire work with fondant or if you wish to make small fondant shapes to glue onto the cake. Watch this tutorial to get the how-to.
A plastic container