How to Build a Layered Cake - Completely Delicious Assembling a layer cake is the process of stacking leveled cake rounds with filling (like frosting, jam, or cream) in between, securing them, and then applying a final coat of frosting for decoration, often using tools like a turntable and spatula for neatness. Key steps include leveling cakes, creating a "glue" of frosting to secure the first layer, spreading even filling layers (often with a buttercream dam for runny fillings), stacking upside