Genoise

GÉNOISE is the most popular all-purpose cake in France. Once you master the techniques for making this cake, the possibilities are endless. Basically a sponge cake made with butter, it is used to make round cakes, square cakes, and jelly rolls. Because of its firm texture, it can be cut into thin layers that—when layered with a variety of buttercreams, whipped creams, liqueur- or coffee-flavored syrups, sugar icings, toasted nuts, praline, and ganache—transform it into elaborate and delicio