The name of this sumptuous dessert hails from the German Schwarzwälder Kirschtorte (Black Forest cherry torte), a nod to the region and its signature ingredient: kirsch. We topped ours with fresh and jarred morello cherries (the dark, tart kind in a light syrup): a bittersweet mix ripe for a flavour explosion. Four layers tall and airy as can be, this chocolate extravaganza gets its lightness from the chocolate genoise cakes, fluffed up with whisked eggs rather than baking powder.