Delicious huitlacoche quesadillas super easy to prepare that you will end up loving for their delicious flavor. Huitlacoche, or cuitlacoche, is an edible fungus found on corn. Currently, it is a sophisticated ingredient used in Mexican cuisine, and although in other countries it is still considered a pest, in Mexico it is consumed in many ways, especially accompanied by tortillas, like these delicious huitlacoche quesadillas with quesillo.