This is my favorite favorite chocolate dessert! Since you are only using very few ingredients, make sure they are of the best possible quality - it makes a difference, especially the chocolate you use. Serve with whipped cream for extra decadence.
The success of this torte hinges on ingredient quality, especially the dark chocolate (75-85% cocoa). Achieve maximum volume in egg yolks by beating until they almost triple; this aeration is key to the torte's texture. When incorporating egg whites, gently fold to preserve their airy structure, first tempering the chocolate batter with a third of the whites before folding in the rest. Be diligent about oven temperature and baking time; overbaking will result in a dry, dense torte rather than a delicate soufflé-like one. The torte will set as it cools, so resist the urge to overbake for firmness. Serve with a dollop of freshly whipped cream to complement its rich intensity.