It is so easy to add flavor to chicken. My Chicken al Pastor is chicken marinated in some smoky chilies with tomatoes, garlic and onions.
Begin by toasting the dried chilies in a cast iron skillet. Toast until just darkened. Take off the stems and add them to a blender. Next, add in the tomatoes, onions, and garlic. Add in the orange juice, apple cider vinegar and mole sauce. Blend until smooth. Add in all the spices and mix one more time.
Take the strips of chicken and place in an air tight container. Pour over as much of the marinade as will fit. Marinade for a minimum of 1 hour up to overnight.
Combine the mayo and chipotle sauce and set aside.
After marinating the chicken, take the chicken out of the container. Heat a cast iron skillet on medium high heat and cook the chicken in batches. Be sure to not overcrowd the pan. You want to get a decent charring onto the chicken.
To assemble, place the tostada on a plate. Then layer beginning with the chipotle mayo, chicken, pineapple, red onions, white onions and cilantro.
Serve and enjoy!