What is "borona"

Boroña is a type of bread made with corn in northern Spain. This cornbread (Galician: broa or boroa in Asturian: boroña in Cantabria: cornbread, of Celtic origin, compare Welsh and Breton baran bread) is a bread made with cornmeal. It is a traditional food from the regions of Galicia, Asturias, Cantabria, the Basque Country and northern Castilla-Leon (areas of León, Palencia and Burgos), Spain. It has been widely used in rural areas until the mid twentieth century. It is usually cooked in an oven wrapped in cabbage leaves.

In Cantabria, by extension, it is called borona, the corn plant bread, and is called "flour corn bread" flour.