Perhaps the best known mantecadas are from Northwestern Spain, being a traditional product of the city of Astorga, province of León, as well as the nearby Maragateria comarca.

[1] There is a factory producing mantecadas in Sardón de Duero, Valladolid Province and another in Maliaño, Cantabria.

The Casa Salinas bakery in Tudela, Navarre, reputed for its excellent mantecadas, closed down in January 2011.

In the Alt Maestrat comarca the mantecada square paper cups are known as "caixetes".

Butter is essential in the preparation and differentiates the mantecadas de Astorga from average bizcocho or magdalenas (muffins).