Preheat oven to 160°C / Gas mark 3.
Cream butter and WHITWORTHS DEMERARA SUGAR in a large bowl.
Add 400g of the flour and mix well. Add more flour until you have a soft dough.
Sprinkle worktop with the remaining flour. Roll to 1cm thickness. Cut into 7 x 2cm strips. Prick with fork and place on lightly greased baking trays.
Bake for 15 to 20 minutes until lightly golden. Transfer to a cooling rack.