Fios de ovos: Portuguese egg thread technique
Portugal (spread through Portuguese colonies)
Golden egg threads spun from egg yolks and sugar syrup — one of the great technical achievements of Portuguese confectionery and the thread that connects Portuguese overseas culinary influence to Southeast Asia. Fios de ovos (egg threads) are made by passing beaten egg yolks through a small sieve with tiny holes directly into a sugar syrup at the precise temperature and density to set the threads as they fall.
The technique travelled with Portuguese traders to Japan (where it became kinshi tamago), Thailand (foi thong), Indonesia, and Brazil — making it one of the most globally distributed Portuguese culinary exports. The threads are used as decoration, wrapped around marzipan, folded into pastries, or served alongside other confections.