The original formula for Fernandino came from a cake called "visitandine" created by nuns at the Visitation Monastery. Lasne, the baker, not only took the formula "not to mention it" but also changed it to a gold bar, according to the location of his bakery and its customers, and replaced it with a new financial-related name, "financier", which in turn became a French classic. The original Financier, which resembled a reduced version of gold bars, was a tea spot invented by the cake chef near the Paris Stock Exchange, allegedly to enable financiers at the Stock Exchange to eat quickly and not dirty their suits. And the pastry itself is made in gold strips, and it's very symbolic. - Encyclopedia