Place the chicken breasts on a cutting board and cover with a large sheet of plastic wrap. Lightly tenderize the breasts with a meat mallet or a rolling pin to an even thickness.
Place chicken breasts on a plate or in Tupperware and sprinkle evenly with kosher salt. Place in the refrigerator uncovered for at least 30 minutes but up to 24 hours. I highly recommend taking this step as it makes for a more moist and evenly cooked chicken breast.
When ready to air fry: remove chicken from the fridge and let it come to room temperature for about 20 mins.
In a small bowl, mix together all of the spices. Set aside.
In a large bowl, transfer the chicken over and add oil. Sprinkle spices on top, and toss to combine and coat the chicken as evenly as possible all over.
Preheat the air fryer to 375 degrees Fahrenheit. Place the chicken smooth side down into the air fryer basket and let it cook for about 7-8 minutes.
Remove air fryer basket, and carefully flip over chicken breasts. Cook on the other inside another 4-6 minutes, until the internal temperature has reached about 160F. This is technically a few degrees before it reaches 165F (safe internal temp to eat chicken at) but it will finish cooking in the basket after it has been removed and turned off.
The total cooking time will vary slightly depending on air fryer and thickness/size of breasts. If your chicken breasts are smaller, check on them at about the 8-10 mins total mark. If they are quite large, you’ll be closer to 14-16 minutes total. Keep checking on them, as you do not want to overcook them and dry them out. Transfer cooked chicken breasts to a plate and let them rest for at least 5 minutes before slicing and serving with your favorite sides. Enjoy!
Notes
This recipe assumes you are using two 8oz breasts (4 servings at 4oz each). Adjust time slightly based on scale below.
Do not skip the dry brine. It's so easy and will ensure the breasts stay moist
Chicken breasts: Cook times will vary depend on size of breasts. Follow the cooking times here, but do not give it a go without using a digital meat thermometer:
Small Breasts (5 to 7 ounces each): 7 to 10 mins
Medium Breasts (8 to 10 ounces each): 10 to 12 mins