The uniquely flavored flour called Farine de Châtaigne Corse is made from chestnuts grown on the French island of Corsica. It is praised for its intensely sweet flavor and complex scents of dried chestnuts, dried fruits, cookies, spices and milk.
Its color is creamy white to reddish-brown and it is finely ground. There is another variety of this flour that is made from roasted chestnuts, which is much darker and has a stronger taste reminiscent of biscuits. All of the chestnuts must be harvested from the ground when they fall from the chestnut trees that must be at least ten years old and from the Castanea sativa Mill. variety.