Gianduja or
gianduia is a sweet
chocolate spread containing about 30%
hazelnut paste, invented in
Turin during Napoléon's regency (1796–1814), when the Mediterranean was under a blockade by the British. A chocolatier in Turin named Michele Prochet, extended the little chocolate he had by mixing it with hazelnuts from the Langhe hills south of Turin. Based on Gianduia, Turin based chocolate manufacturer
Caffarel invented Gianduiotto in 1852. It takes its name from
Gianduja, a
Carnival and
marionette character who represents the archetypal
Piedmontese, a native of the Italian region where hazelnut confectionery is common.