Pat the chicken dry with paper towels; season with spice rub.
Heat canola oil in a large cast iron skillet over medium high heat. Working in batches, add chicken to the skillet in a single layer and cook until golden brown and cooked through, reaching an internal temperature of 165 degrees F, about 4-5 minutes per side. Let cool before dicing into bite-size pieces.
Serve chicken in tortillas, topped with pico de gallo, avocado, cilantro and lime.
For the spice rub
In a small bowl, combine chili powder, cumin, paprika, oregano, garlic powder, 1 teaspoon salt and 1/2 teaspoon pepper.
Notes
Chicken thighs are juicier. For the juiciest chicken tacos, opt for chicken thighs instead of breasts. Because of their higher fat content, the chicken thighs are juicier, more flavorful, and much more forgiving if overcooked.
Use a cast iron skillet. A cast iron skillet offers unmatched heat retention and distribution for the best sear while keeping the chicken incredibly juicy and moist on the inside.
Neutral oils with a high smoke point is ideal. Use a neutral oil such as avocado, peanut, canola or vegetable oil, offering the ability to withstand high heat without smoking, burning, or changing the flavor of the chicken while producing a perfectly golden-brown sear.
Cook in batches. Cook the seasoned chicken thighs in batches for a proper sear and to prevent the pan from overcrowding. An overcrowded pan will inevitably steam the chicken instead.
Let the chicken cool before dicing. Let the chicken rest and cool prior to dicing, allowing the juices to redistribute – this will allow for maximum flavor and juiciness without tearing when dicing.
Grill outdoors. When the weather permits, use an outdoor grill for even more smoky, charred flavors.
Double the spice rub and store for later. Double or triple the batch of the homemade spice mixture and store it as your go-to chicken taco seasoning in an airtight container. It cuts down prep time even further for taco night, and guarantees consistent flavor in every chicken taco recipe!
Use flour or corn tortillas. Tacos are traditionally made with corn tortillas but small flour or corn tortillas can be used depending on personal preference. Always warm the tortillas first to prevent tearing (stovetop, microwave and oven instructions above).
Double up the tortilla. Street tacos are typically served on two tortillas, known as la copia or “the copy”. This practice helps keep the filling together, and if the first tortilla breaks, the back up tortilla can be used for the rest of the filling.
Serve with your favorite toppings. Serve with pico de gallo, salsa verde, guacamole, avocado, cilantro, cotija cheese or lime.