Ladyfinger Sponge

Another sponge variation is the ladyfinger sponge, also known as a piped sponge, which is used not only for cookies but also for several classic desserts, including tiramisu, charlotte Russe, and gâteau Malakoff. In this method, more air is whipped into the batter so that it can be piped into various shapes without running. Ladyfinger sponges are meant to be very dry after baking, but they easily absorb moisture from fillings or syrup.