Sachertorte
Vienna's most famous cake: a dense, fine-crumbed bittersweet chocolate sponge, lightened with whipped egg whites, split and filled with tangy apricot jam, brushed all over with more jam, then poured with a glossy, fudgy dark chocolate glaze. Traditionally served with a mound of unsweetened whipped cream (Schlagobers) to balance its richness.
At a glance
Ingredients and method are in the app
Kitchen Pantri holds the full ingredient list and step-by-step method for Sachertorte, checks it against what is already in your pantry, and adds anything missing to your shopping list. The app is free to use; you set up a Pantri account when you first open it.