Pane sciocco (Italian: [ˈpaːne ʃˈʃɔkko]; lit.
Tu proverai sì come sa di sale / Lo pane altrui, [...] Thou shalt have proof how savoureth of salt / The bread of others, [...] In Italian, particularly in Tuscany, sciocco means 'unsalted', but is more usually a word for 'foolish, stupid' elsewhere.
According to legend, bakers created a saltless bread so they did not have to pay an increased salt tax.
[1] Pane sciocco is often eaten with Tuscan condiments such as pecorino toscano cheese, ham, sausages, and prosciutto.
[1] Media related to Tuscan bread at Wikimedia Commons