A very dark, rich chocolate biscuit for the true chocoholic, this recipe uses relatively little flour and a lot of chocolate. These will keep well in the freezer, but you may have a hard time waiting for them to thaw before you eat them!
Melt the dark chocolate, the dark chocolate chips and the butter in a microwave or in a metal bowl over a pan of simmering water, stirring occasionally until smooth. Set aside to cool.
2.
In a large bowl, whip eggs and sugar until thick and pale, about 2 minutes. Stir in the vanilla and the chocolate mixture until well mixed.
3.
Sift the flour, cocoa, baking powder and salt together into a bowl. Gradually stir into the chocolate mixture.
4.
Fold in remaining 1 cup chocolate chips, cover dough and chill for at least 1 hour or overnight.
5.
Preheat oven to 180 degrees C. Roll chilled dough into 2 1/2cm balls. Place on ungreased baking tray so they are 5cm apart and bake for 9 to 11 minutes.
6.
Allow biscuits to cool on tray for 5 minutes before removing to a wire rack to cool completely.