Makes 3 dozen
2 cups (400 g) sugar
1 teaspoon vanilla essence
1 cup (130 g) cocoa powder
1 cup (120 g) flour
1 teaspoon baking powder
11/2 cups (150 g) walnuts, chopped
Place eggs in a mixing bowl and beat until fluffy.
Gradually add sugar and vanilla essence, beating well after each addition, until thick and creamy (for approx. 10 minutes).
Cut the butter into cubes and melt in the microwave oven or in a double boiler.
Stir in the cocoa powder until well blended.
Pour in and stir well.
Fold in the sifted flour, baking powder and floured walnuts.
Pour the batter into a well greased and floured square or rectangular tin and bake in a moderate oven for about 30 minutes or until tested with a skewer.
Remove from oven and cut into small squares while still warm.
Serve them like that or sprinkled with caster sugar.
You can also serve warm accompanied by a scoop of ice cream.