1 ½ cup (300 g ) sugar
150g dark chocolate
1 cup (100 g ) walnuts, chopped
1 cup (120 g ) flour
1 teaspoon baking powder
½ teaspoon bicarbonate of soda
pinch of salt
1 teaspoon vanilla essence
Place the eggs in a mixing bowl and beat until light and fluffy.
Gradually add the sugar and beat vigorously after each addition until creamy ( approx. 10 minutes).
Chop the chocolate or grate it.
Cut the butter into cubes.
Place these two ingredients in a bowl and melt in microwave oven or in a double boiler.
When completely melted, stir into the eggs and add the vanilla essence.
Sift together flour, baking powder, bicarbonate of soda and salt.
Fold in the batter and add chopped walnuts.
Pour the batter into a greased and floured rectangular tin. Bake in a moderate oven for about 30 minutes or until tested with skewer.
Remove from oven and cut into small squares, while still warm.