The Mexican sweet bread roll topped with a sugar shell is called a concha.
A concha is a traditional Mexican pan dulce whose name comes from the Spanish word for “shell.” Its round, brioche-like bread is covered with a crunchy mixture of flour, butter, and sugar. Bakers score the topping in curved lines so it resembles a seashell, producing the pastry’s instantly recognizable pattern.
Common topping flavors include vanilla, chocolate, and strawberry, although modern bakeries create many variations. Conchas are widely eaten for breakfast or as a snack, often alongside coffee, hot chocolate, or milk. They can also be used creatively as sandwich buns.
The pastry’s exact origin is uncertain. Many accounts connect its development to French bakers working in colonial Mexico, then known as New Spain, but the evidence is not definitive. A recorded recipe dates to 1820. Conchas are often confused with cuernos, which are crescent-shaped pastries, or bolillos and teleras, which are savory or neutral bread rolls rather than sweet pan dulce. They are also associated with Mexican bakeries and, in some families, Day of the Dead offerings.