In a small bowl, mix together 1 teaspoon kosher salt, 2 teaspoons smoked paprika, 2 teaspoons garlic powder, 1 teaspoon dried thyme leaves, ½ teaspoon onion powder, and ½ teaspoon cayenne pepper. Set aside to season chicken.
If you're not using pre-cut cutlets, slice each chicken breast in half lengthwise. Working one piece at a time, place the chicken between two pieces of parchment paper or plastic wrap and gently pound with a meat mallet or heavy skillet until it's about ¼-inch thick.
Pat the chicken dry with paper towels. Sprinkle the spice mixture evenly over both sides of the chicken, then use your hands ro rub the seasoning mixture into the chicken.
Heat large cast iron skillet or stainless steel pan over medium-high heat. Once heated, add in the olive oil and let heat for 1 minute. Add the butter to the heated oil and let let melt.
Once melted. Add the seasoned chicken to the pan and cook, undisturbed, for 3 minutes, or until deep, golden brown. Gently flip the chicken over and add the remaining tablespoon of butter to the pan. Continue to cook, undisturbed for an additional 2-3 minutes, or until the chicken reaches an internal temperature of 165˚F.
Remove the chicken from the skillet, tent with foil and let rest for 5 minutes before serving.
Video
Notes
Storage: Store leftover blackened chicken in an airtight container in the refrigerator for up to 3 days. Reheat the chicken gently in a dry skillet over medium heat for a couple of minutes per side, or until warmed through.Air Fryer Instructions: Prepare and season the chicken as directed. Generously spray the chicken with avocado or olive oil cooking spray and air-fry for 6 minutes at 380℉. Flip the chicken and continue to air fry for another 4-6 minutes, or until the chicken reaches an internal temperature of 165℉.Baked Option (Not Blackened, but Seasoned): Bake on a greased sheet pan at 425℉ for 8-12 minutes, or until the chicken reaches an internal temperature of 165℉.