A tlacoyo is an oval-shaped Mexican dish of pre-Hispanic origin made of masa. Tlacoyos are thicker than fresh corn tortillas and are stuffed with cheese, fava beans, cooked ground beans, chicharron, and other ingredients before being fried or toasted. Tlacoyos can be served as an accompaniment to soups and stews or as appetizers for celebrations.
Most traditional tlacoyos do not have lard or salt in the masa, and if not eaten soon after they are cooked, they become very tough and dry, even if reheated. In Mexican markets, vendors keep their tlacoyos warm by putting them in a covered basket, with the additional effect that the steam keeps them moist for a longer time. This dish has inspired the pupusa, a popular food in El Salvador as well as the arepa, another South American dish.