A Taco Built Around a Spit
Tacos al pastor are made from thin slices of marinated pork cooked on a vertical spit, shaved off in strips, and served on small tortillas with onion, cilantro and often a sliver of pineapple. The dish is closely associated with Mexico City, though it is now found across the country and abroad. Its most commonly accepted origin is the cooking of Lebanese immigrants, who brought a way of roasting meat on a vertical spit that is related to shawarma.
The outline of that story is well supported. The details, such as who first used pork or who added the pineapple, are not firmly documented, and anyone who names a single inventor should be read with caution.
Lebanese Migration to Mexico
From the late nineteenth century, many people from the territories of the Ottoman Empire, including areas that are now Lebanon, left for the Americas. A significant number settled in Mexico, in Mexico City, Puebla, Yucatan and other regions. Many worked in trade, textiles and food, and their descendants became part of Mexican business, cultural and culinary life.
These communities brought familiar dishes with them, including kibbeh, which became a local favorite in Yucatan, and wheat flatbreads, along with the practice of cooking sliced, marinated meat on a vertical rotisserie. In the Middle East that meat was often lamb or mutton, sometimes chicken or beef, and was served in flatbread.
From Shawarma to Tacos Arabes
The first step in the adaptation seems to have been tacos arabes, a dish most strongly tied to Puebla. Pork replaced lamb in many cases, since pork was easier to find and more familiar to local diners. The meat was cooked on a vertical spit and served in a thick, pita-like flatbread, often with a chile-based salsa. Tacos arabes are still sold in Puebla and are considered a regional specialty, which connects them to the wider Puebla cuisine of convents, cemitas and sauces.
The step from tacos arabes to tacos al pastor is where the story becomes less certain. A common account says that cooks in Mexico City, around the middle of the twentieth century, replaced the flatbread with small corn tortillas and changed the seasoning to suit local taste. Particular taquerias are named in different versions of the story, and those names should be treated as claims rather than established history.
What “Al Pastor” Means
“Al pastor” translates roughly as “shepherd style”. The name is often explained as a reference to the lamb originally cooked on the spit, since lamb is associated with shepherds. Once pork became the usual meat, the name stuck. Other explanations exist, and the exact reason for the label is not documented.
The Marinade
The red color and distinctive taste of al pastor come from a marinade based on dried chiles. Cooks commonly use guajillo and sometimes ancho or other varieties, ground into a paste with garlic, vinegar and spices. Achiote, the seed of the annatto tree, is often added for color and a slightly earthy flavor, and it ties al pastor to the broader tradition of chile adobo used for marinating. Spices may include cumin, oregano, clove and pepper, similar to those described under cumin and oregano in Mexican seasoning. Recipes vary widely, and each taqueria usually guards its own proportions.
Pineapple is often part of the marinade as well as the garnish. Fresh pineapple contains enzymes that can soften meat, which is why cooks do not leave sliced pork in pineapple for too long: the texture can turn mushy.
The Trompo
The vertical spit is called a trompo, meaning “spinning top”, because of its shape. The process runs roughly as follows:
- Thin slices of pork, typically from the shoulder, are marinated and stacked tightly on the spit in a cone.
- A piece of onion, and in many cases a whole pineapple, is placed on top.
- The trompo turns in front of a flame or heating element, and the outer layer cooks and browns.
- The taquero shaves off thin slices with a long knife, often catching them on a tortilla held in the other hand.
- A small piece of pineapple is sometimes sliced off the top so that it lands on the taco.
The mix of fat and lean in the stack bastes the meat as it turns, and the crisp edges are one of the main attractions.
How It Is Served
A typical order is a pair of small corn tortillas, pork, chopped onion and cilantro, a squeeze of lime and a spoonful of salsa. Green and red salsas are both common, and the salsa styles used at taquerias differ from place to place. Some stands also offer a gringa, a flour tortilla with cheese and pork, which is its own variation.
Home Cooking and Food Safety
Home cooks usually cannot build a real trompo. A common substitute is to marinate sliced pork, stack it in a loaf pan or thread it onto skewers, roast or grill it, and then slice it thinly. A hot cast-iron pan or griddle can brown the slices to resemble the crisp edges.
Pork should be cooked through, and a thermometer is a sensible check for thicker pieces. A marinade that has touched raw meat should not be used as a sauce unless it is boiled first. Chiles can irritate hands and eyes, so some cooks wear gloves when handling and grinding them.
A Shared Heritage
Tacos al pastor are a useful example of how a dish forms when cultures meet. The technique came from the eastern Mediterranean, the meat and tortillas are Mexican, and the seasoning is based on Mexican chiles. None of this makes the dish less Mexican. It makes it a record of migration, trade and adaptation, and a reminder that national cuisines are rarely closed systems.