The cheese is usually mozzarella or Chihuahua.  The meat is beef brisket stewed and marinated for up to 10 hours in a mix of chilies and spices. In addition, one can add chopped white onion and cilantro to the quesabirria. A consommé made from the juices of the sauce used to cook the beef does double duty as both a dipping sauce and a drinkable broth. Finally, these red tacos are served hot