Flourless Chocolate-Hazelnut Cake - cooking recipe

Ingredients

1 lb dark chocolate (70% cocoa)
3/4 cup butter, chopped
1 cup ground hazelnuts
5 None eggs, separated
1 tbsp hazelnut liqueur
1/4 tsp cream of tartar
1/4 cup granulated sugar
None None powdered sugar, to serve
None None heavy cream, to serve
None None raspberries, to serve

Preparation

Preheat oven to 325\u00b0F. Lightly grease and line an 8 inch cake pan with parchment paper.
Heat chocolate and butter over a double boiler, stirring, until melted and smooth. Let cool slightly. Add ground hazelnuts, egg yolks and liqueur. Whip egg whites with cream of tartar and 1/4 tsp salt until stiff. Gradually whisk in sugar until thick and glossy then fold into chocolate mixture. Transfer to prepared pan and bake for 40-45 mins.
Let cool in pan for 10 mins then transfer to a wire rack to cool completely. Dust with powdered sugar and serve with heavy cream and raspberries.