1Fry the New Mexico chile pods, chile ancho, some onion, and some garlic in a pan with oil.
2Once everything is ready, add the fried ingredients to a blender.
3Add pineapple, seasoning, pineapple juice, oil, and vinegar to the blender.
4Blend all ingredients until a smooth sauce is formed.
5Marinate thin slices of pork shoulder with the prepared sauce, ensuring each piece is covered.
6Let the marinated pork sit for about 3 to 4 hours.
7Start building the trompo by layering marinated pork slices onto a pineapple base on a trompo spit, adding pineapple in between the meat layers for extra flavor.
8Cover the trompo with aluminum foil.
9Place the covered trompo in the oven at 350°F (175°C) for approximately 3 hours.
10Once cooked, remove the foil and slice the al pastor meat directly onto tortillas.
11Serve the tacos with desired toppings like cilantro, onion, lime, and salsa.