This traditional Tuscan cake is prepared just in harvest season collecting the grapes directly from the vineyards once they are juicy and fully ripe. Here in Toronto you can use any type of red, small and seeded grapes (seeds give the crunchiness and remind of the wine grapes which are all seeded)....
Fresh chestnuts and fresh chestnut flour are seasonal products and not a year long offering so take advantage of this narrow time window to enjoy them!
Chestnut is not a typical nut nutrition wise because very low on calories and fats. The flour is rich of fiber and gluten free so the cakes made entirely with it will not rise.
