Possibly. Maybe some are delivered to Porto from Pastelaria Clarinha. Sorry to ruin your diet. Here is some info: These crescent-shaped pastries consist of a thin, flaky dough that is filled with a sweet combination of sugar, egg yolks, ground almonds, and chila (gila) squash. After baking, they are shortly dipped in syrup, which provides the tortas with a crisp, glossy coating. As the name suggests, the pastries were invented in Guimarães, and they were originally prepared by nuns from the convent of Santa Clara. Nowadays, they are one of the most recognizable Guimarães desserts.