Mix the ingredients for the brine except for the ice in a small saucepan. Heat the sauce and stir until the sugar has dissolved.
Put ice in a large bowl and add the mixture. Stir and add the remaining water. Test for temperature. Add the chicken when the mixture is under 40 °F (4 °C).
Refrigerate for 2 to 24 hours.
Rub
Mix the ingredients for the rub. Remove the chicken from the brine.
Remove the spine and break the breastbone. Dry the chicken with paper towels. Put a silicone mat on the air fryer rack and put the chicken, back side up, on the rack.
Put a generous amount of rub on the inside of the chicken.
Turn the chicken over and put the remaining rub on the front.
Mix the ingredients for the sauce.
Brush the front of the chicken with some of the sauce.
Cooking
Put the chicken in the air fryer at 380 °F (193 °C) for 20 minutes.
At 20 minutes, check the temperature
Brush with more sauce and cook for an additional 10 minutes.
Brush with more sauce and cook until the chicken has reached 165 °F (74 °C).
Remove the chicken from the air fryer and let it rest for 10 minutes before cutting up
Garnish the chicken with fresh cilantro leaves.
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