As requested by many, here's the recipe to a good chocolate sponge cake. This recipe is from Richard Goh, my favourite instructor for baking. This recipe calls for really simple ingredients but requires precision in terms of getting the batter whisked to the right stage of 'doneness'.
I love this recipe as it's manageable when done right and it's perfectly soft when handled right.
Even though this is merely a sponge cake, I'd term this as a bake with difficulty level 3 out of 5 as many fail to get the right doneness for the whisking of the batter, resulting in a kueh-like dense sponge cake. So do read on for tips! (: