This is a slightly tarted-up version of your basic flourless chocolate gâteau, and can be ready within an hour if you have all the ingredients on hand (note to self: always have ingredients on hand). To fully appreciate this cake, underbake it just a little, so that the center is still slightly gooey. This cake has an interesting characteristic: if you leave it at room temperature, it will be soft and tender with a moist ‘crumb’, however once you chill it, it gains a completely different texture, kind of like a firm ganache truffle-center. Either way, it’s sinfully good.