250 g semi-sweet chocolate
1/2 cup melted margarine
3/4 cup brown sugar
2 eggs
3/4 teaspoon vanilla
3/4 cup ground nuts
1/2 cup sifted flour
1 teaspoon baking powder
1/4 confectioner's sugar

Cut the chocolate in small pieces. In a bowl mix margarine, brown sugar, eggs and vanilla. Gradually add nuts, chocolate, sifted flour and baking powder. Mix well. Pour the batter into a glass bowl. Put it into the microwave on high temperature for 6 minutes. Let it cool completely before cuttitng. Sprinkle the top with confectioner's sugar.