This recipe is a very old. It dates back at least 200 hundred years. In Mexico it is served after a night of partying. It is said to cure a hangover. I can still see my grandmother spreading the left over day old corn tortillas on a large table cloth before retiring. This was to let them further dry out. The next morning she would fry the strips or triangles of tortillas until crisp and remove to a platter. She then prepared a sauce to die for sometimes made with (Mexican chorizo optional if she had any) poured over the tortilas coated them sprinkled grated Oaxaca cheese and queso fresco.