Recipe by TempR
From Luscious Chocolate Desserts by Lori Longbotham. I find choc truffle cakes too dense so was happy to find this and to realise I could make it for Passover. She suggests trying the alternating layers of cocoa and confectioners' sugar to decorate other desserts as it's "simple but stunning".
- 1 lb bittersweet chocolate or 1 lb semisweet chocolate, chopped
- 1 cup unsalted butter (2 sticks)
- 9 large eggs, separated
- 3⁄4 cup sugar
- 1 tablespoon sugar
- unsweetened cocoa powder (for dusting)
- confectioners' sugar, for dusting
- Position a rack in the middle of the oven and preheat oven to 300°F.
- Butter and flour 9 inch spring form pan and line bottom with parchment paper.
- Melt the chocolate with the butter in a heatproof bowl set over a saucepan of about 1.5 inches of nearly simmering water, whisking until smooth.
- Remove bowl from heat and let cool to room temperature.
- Beat egg yolks and 3/4 cup of the sugar with an electric mixer on medium-high speed in a large deep bowl for 4 to 5 minutes, until very thick and pale.
- Beat egg whites with clean beaters in another large bowl just until the whites form soft peaks when the beaters are lifted. Beat in the remaining 1 tablespoon sugar.
- With a whisk or rubber spatua, gently fold in 1/3 of the cooled chocolate mixture into the egg yolk mixture. Then fold in 1/3 of the egg whites.
- Repeat, adding the chocolate and egg white mixtures alternately in thirds until all of the ingredients are combined.
- Transfer the batter to the prepared pan.
- Bake for about 30 minutes until the edges are firm and the centre is puffed but still a bit jiggly; do not overbake.
- Transfer to a wire rack to cool completely.
- To serve, remove sides of pan. Dust the cake with a layer of cocoa and then a layer of confectioners' sugar. Repeat with a second layer of cocoa and a final layer of sugar. Cut into thin wedges.