Preheat air fryer to 390° Fahrenheit for 4 minutes.
Trim any fat from chicken breast, Slice into ½ inch thick slices, then each slice into 2 to 3 nuggets. Season chicken pieces with salt and pepper.
Place melted butter in a small bowl and breadcrumbs ( with Parmesan, if using ) in another small bowl.
Dip each piece of chicken in butter, then breadcrumbs.
Place in a single layer in the air fryer basket. Depending on the size of your air fryer, you may need to bake in two batches or more.
Set timer to 8 minutes.
When done, check if the internal temperature of chicken nuggets is at least 165° F. Remove nuggets from basket with tongs and set onto a plate to cool.
Notes
Serve with steamed or roasted vegetables or fruit salad and yogurt.
This recipe makes about 21 chicken nuggets from one chicken breast. You can double and use two chicken breast and make 42 nuggets, which is comparable to the amount you get in a bag in a grocery store.
You can use plain breadcrumbs, however I prefer Italian style.
The amount of calories does not include Parmesan cheese, which is optional.