This adorable, bite-sized chestnut cake is made with chestnut paste from Tamba, Hyogo Prefecture, featuring lustrous Tamba chestnuts, one of the "Three Treasures of Tamba," which are lovingly grown in the misty mountains of Tamba. These chestnuts are large, soft, and exceptionally sweet. The caramel-flavored financier dough is filled with a combination of almond paste and Tamba chestnut paste.