. ! i! Trimming off the crusty or hard bits at the top with serrated knife Cutting cake into three layers We all start off which a 8x8 inch chocolate mud cake. For novelty cakes, a firm, dense cake like a mud cake is necessary as it needs to support decorations and also maintain the integrity of the structure. For that reason sponges and similar cakes are not used. She starts by slicing it into three layers horizontally. To do this, mark the layers using the back of a long, serrated knife and then moving the cake start cutting across. As it is a stainless steel knife, you simply w...