Preheat the oven to 300F/148-150C Shape with a diameter of 23 cm grease with butter and cover it with a circle of parchment paper. In a water bath melt the chocolate. Grate in the zest of the oranges directly over the bowl of mixer. Add butter and sugar and beat for 3-5 minutes until the sugar is dissolved and light and fluffy. Then add the eggs one by one beating well after each addition. Shovel enter the ground almonds and then the melted chocolate( be careful that the chocolate was not too hot so that the oil does not become ahead of time to rapidly melt), put the dough in the prepared form and put the form in the oven to bake for 40-45 minutes. Readiness check splinter, which will remain moist crumbs. Leave the cake for 15 minutes. Then invert the cake on a kitchen lattice. Cool completely. For the icing melt the chocolate, cool slightly, enter the butter into the chocolate, stirring with a spatula. The glaze should be shiny and smooth, and its temperature should reach 80-85F (26-29C) Starting at about 4-5 cm from the edges, pour the glaze, so that it flowed over the edges, and then the remaining glaze poured in the middle. Shovel for cakes or a wide knife to smooth the icing and allow to harden at room temperature for 1-2 hours. You can decorate with slices of orange, grated zest or sprinkle with nuts. But looks good without decorations. PySy. Since the cake is made on a nut basis without flour and the consistency of his heavy, he is not very rises, by about half. Pour the icing better than the bottom - so smooth chocolate puddle.

Cutting orange