To make the pesto-
Place basil leaves in a food processor add pine nuts, grated parmesan, a pinch of salt and pepper, chopped garlic cloves.
Pulse the food processor until the pesto is well blended.
Add in olive oil gradually pulsing between additions until you have a smooth pesto
Pat the chicken breast dry with paper towels, cut into small pieces and put in a bowl. Sprinkle with salt and pepper and stir to coat.
Pour the pesto sauce over the chicken and stir to coat. If desired reserve 1/4 of the sauce for serving.
Place the chicken in the basket of the air fryer, and cook for 10 minutes on 400
Turn the chicken pieces over and air fry for 4- 5 more minutes.
Remove from the air fryer and top with additional sauce or sprinkle of parmesan cheese if desired.
Store any leftovers refrigerated in an airtight container.