How to cut a multi-layer sponge cake
Cakes with multiple layers, especially those made up of various textures such as sponge cakes, can be tricky to cut the traditional way – cutting downwards often squashes the cake, causing the softer filling to ooze unevenly out the side and leaving you with an unsightly mess.
The trick to avoid this, is to use a sharp serrated knife that has a pointed end and is at least the length of the height of the cake.
Insert it into the centre of the cake vertically and use a gentle, slow sawing action to cut the cake. The layers will miraculously stay intact as each slice is cut and removed from the cake.