5 chocolate and hazelnut meringue cake Recipes

unsalted butter, plus more for pan, all-purpose flour, for pan, hazelnuts (about 4 oz), light brown sugar , firmly packed, eggs, separated, egg whites, bittersweet chocolate, melted and cooled, plus 4 oz roughly chopped, pure vanilla extract, rum, salt, cornstarch, cream of tartar, superfine sugar

egg whites, white sugar, sugar, ground cinnamon, cornstarch, ground hazelnuts, semisweet chocolate, chopped, heavy whipping cream, sugar, unsweetened cocoa powder

egg whites (free-range, largest size), sugar (icing ), cornflour (maizena in south africa), hazelnuts, ground (ground almonds might also do), cocoa powder , for dusting, chocolate, dark, chopped (high quality, 400 g), cream , to whip, eggs , free-range, cream (thick , double, whipped)

vegetable oil for greasing, all-purpose flour plus additional for dusting, granulated sugar, egg whites, at room temperature for 30 minutes, almonds or hazelnuts, toasted (see cooks note, below), chopped, and finely ground in a food processor (3/4 cup), fine-quality bittersweet chocolate (not unsweetened), chopped, water, instant-coffee granules, chilled heavy cream, confectioners sugar, kirsch or cognac, garnish: grated bittersweet chocolate or chocolate curls