In music terminology fortissimo means to play a passage of music loudly. True to its namesake, this cake has bold chocolate flavor, yet it retains lightness with its sponge base, silky buttercream and chantilly fillings. Overall, a symphony of really beautiful flavors and textures. This cake has several components and steps, but each is pretty straight forward. It is of intermediate skill level, and bakers with knowledge of making genoise sponge will have no trouble. If you’re a beginner baker, use the genoise recipe along with the video provided in the blog post for success. This cake hinges on a well-risen sponge because it is torted in three layers and must be tall enough after baking to do so.Tia Maria is the suggested coffee liqueur to use in this recipe, but Kahlua is a fine substitute. For the buttercream, use salted (yes, salted!) butter with 82% milkfat. This is sometimes labeled as ‘extra-creamy’ or ‘European-style’. Imported French butters are among those with higher milkfat.