Chocolate Sponge Cake

In most recipes for chocolate sponge cake, some of the flour is simply replaced with cocoa powder. The result is rather tame and a bit dry. The method shown here is similar, but the resulting cake is moister than a classic genoise and has a deep chocolate flavor. Bittersweet chocolate is melted with water, then the mixture is stirred until smooth and folded with beaten whole eggs, in the same fashion as classic genoise. Fill with