Biscotti al farro

whole wheat flour 48.0% , sugar 21.5% , sunflower oil 19.7% , spelled flour 9.0% , egg 0.9% , butter 0.5% , skimmed milk powder 0.2% , rising agents 0.1% , E500ii 0.1% , carbonate Ammonium acid 0.0% , dextrose 0.0% , potato starch 0.0% , wheat starch 0.0% , glucose syrup 0.0% , honey 0.0% , wheat malt 0.0% , flavouring 0.0% , Emulsifier 0.0%