Step 1

Melt the chocolate in a double boiler, then let it cool.

Step 2

Cut the soft butter into small pieces and pour it into the bowl of the mixer. Add the sugar and mix until the butter and sugar are creamy.

Step 3

Now add the eggs one at a time. Make sure the egg is completely absorbed before adding the next one. Continue in this way until the mixture is smooth. Finally, pour the melted chocolate directly into the bowl and mix well.

Step 4

Now in a separate bowl, sift flour, cocoa and baking powder and mix them together. Then add them a little at a time to the cream of eggs, sugar, butter and chocolate. You get a creamy, frothy mixture.

Step 5

Line a 22-cm (9-inch) round cake pan with baking paper. Pour in the mixture and level the surface. Bake in a preheated ventilated oven at 180°C (356°F) for 40-45 minutes. Or in a static oven at 190°C (374°F) for 45-50 minutes. Let cool before removing it from the pan. Sprinkle with icing sugar and serve.