How do you stack cakes on top of one another?

To stack cakes, start by ensuring each layer is completely cooled and level; trim the tops if necessary. Place a layer of frosting on the top of the bottom cake to act as glue for the next layer. Carefully position the next cake on top, using a cake lifter or your hands, and add more frosting between layers as desired. Secure the structure with dowels or straws for added stability, especially for larger cakes.