1 Preheat the oven to 210 °C (th 7). Butter 4 ramekins and sprinkle them with sugar. Reserve in a cool place. Break the chocolate into pieces, melt them in a saucepan with the remaining butter.
2 Separate the whites from the yolks, beat the yolks with 50 g of sugar until the mixture whitens. Stir in the melted chocolate, cream and cocoa.
3 Whisk the 6 egg whites until stiff, adding the remaining sugar and a pinch of salt. Gently fold them into the chocolate mixture. Divide into the ramekins
4 Lower the oven heat to 190 °C (th 6/7). Bake the soufflés 15 minutes. Sprinkle them with the remaining cocoa and icing sugar. Serve immediately