Birria

Born in the Jalisco region of western Mexico, with the town of Cocula widely cited as its cradle; it traces to the colonial era after the Spanish introduced goats (commonly placed in the conquest period of the early-to-mid 1500s). Spanish colonizers brought goats to the region; locals found the meat tough and gamy and developed a long chili-marinated braise to tame it. Modern Tijuana street vendors converted it to the taco-and-broth format in the 1950s; the quesabirria format was developed by Tijuana taqueros (who switched to beef as goat was costlier and leaner), but the viral wave actually centered on Los Angeles around 2015-2016, where Tijuana taqueros brought it across the border and Instagram spread it (e.g. Birrieria Gonzalez opened 2015), before it reached wider US food media.

A Jalisco goat stew that became a tortilla-truck phenomenon when somebody dipped a quesadilla in the consomé.

Deep red broth (consomé) glossy with chili oil, beef or goat shredded into long strands. Served two ways: as a stew in a clay bowl with chopped onion, cilantro, lime; or as the dip for crisp tacos (quesabirria) where the tortilla is fried in the broth fat itself. The meat should fall apart at chopstick pressure but the strands stay distinct, not paste.

Adobo is the technical move: dried guajillo, ancho, and pasilla chilies are toasted, soaked, and blended with vinegar, garlic, cumin, oregano, cloves before going on the meat for 12+ hours. The vinegar denatures the muscle proteins; the chili oil carries fat-soluble flavor deep. Skip the marinade and braise alone — the meat is tender but flat, with chili sitting on the surface only.