Hailing from Aveiro, these delectable sweets consist of a paper-thin wafer that is filled with a creamy mixture of egg yolks and sugar. Ovos moles, which translates to soft eggs, belong to a wide group of Portuguese desserts that were originally prepared by nuns.

This dessert is usually associated with Mosteiro de Jesus in Aveiro. It is believed that when the convents were closed, the recipe stayed with the nuns, and by the mid-19th century, there were already many reputable establishments which sold ovos moles.

The wafers are typically shaped into maritime symbols such as shells, fish, or barrels, which are all associated with the picturesque city of Aveiro. Along with being one of the most popular Portuguese edible souvenirs, ovos moles were the first Portuguese convent treat that was granted a protected status by the European Commission.