Using a food processor to make a garlic herb marinade for air fryer chicken breast is a game-changer. Combine fresh garlic, herbs like rosemary and thyme, olive oil, salt, and pepper in the food processor. Process until you have a smooth marinade. Coat the chicken breast with the marinade and let it sit for at least 30 minutes. Then, place the chicken breast in the air fryer and cook until it reaches the desired level of doneness. The result is a juicy and flavorful chicken breast infused with garlic and herbs.