I am a big fan of cooking shows, especially those on baking. I found this recipe a few months ago from Cake Boss & now it's all I use for my sponge cakes. The secret to this cake being Light & Fluffy is the beating of the eggs. Don't rush that step.
Chocolate Sponge Cake is also known as Chocolate biskvit. It is very similar to traditional white biskvit except you add cocoa powder and less flour to make a perfect chocolate sponge cake layers that can serve as a base for many different chocolate cake