Mole prieto is the festival mole of Tlaxcala. It includes toasted, ground dried chiles, and what sets it apart is the nixtamalized corn dough that thickens it and gives it body, as well as the dark color that gives it its name: prieto means dark. The most common meat is pork; there are versions with chicken or turkey.
The Náhuatl name is tlilmolli, meaning “black sauce.” Tradition links it to pre-Hispanic offerings, when it was prepared with venison or turkey; with the arrival of the Spanish, pork became the main meat. Today it is made mainly in communities such as Contla and Chiautempan, in large pots, by cooks who share the work.
Mole prieto is not an everyday dish. It appears at Carnival, during Holy Week, at patron saint festivals and at weddings, and is served to the community in cajetes and clay pots, accompanied by long corn tamales. On November 22, 2016, the Tlaxcala Congress declared it an intangible cultural heritage of the state.
Among Mexico’s moles, prieto differs from poblano and Oaxaca’s negro by the corn dough that thickens it and by its smoky flavor.