Nuts

Castanea sativa

Castanea sativa is the European sweet chestnut, the species behind most Mediterranean and western European chestnut culture—Italian castagne, French châtaignes, Spanish and Portuguese mountain harvests. Its nuts vary from small wild types to large cultivated marron-style fruits, always starchy and sweet when cooked rather than oily. This is the botanical backbone of European chestnut flour, puree, and roasting traditions. A good C. sativa lot from a known region tastes honeyed and peels cleanly after proper cooking. A bad lot is mixed with immature nuts or stored until mould takes the sweetness. When a label simply says “European chestnut,” it usually points here. Growers select larger single-embryo fruits for candying; smaller nuts still make excellent flour.