Cut the chicken into 1"-1.5" cubes. Season lightly with salt and pepper.
Place the chicken into a large ziplock bag or bowl and sprinkle over the cornstarch. Shake/mix to evenly distribute the starch on all of the chicken.
Place the corn chex into a food processor or blender and blend until they have formed a powder.
Mix together the corn chex, salt, pepper, cayenne pepper and paprika in a shallow dish or a large bowl.
Crack 3 eggs into a bowl and add your hot sauce. Beat the eggs.
Dunk the cornstarch coated chicken into the egg wash and then place into the bag/dish with the corn chex. If you're using the bag method, don't overcrowd the bag. Shake to coat adding more corn chex if needed. Make sure you allow the excess egg wash to drain off of the chicken before you put it into the bag. If there is too much egg on the chicken it can cause the breading to clump together. If this happens, you will probably want to dump it out and start over between rounds of coating. With the dish method you can just do them as you go. Keep one hand for the egg dunk and one hand for the breading, that will keep the corn chex from gunking up on your fingers.
I like to set a sheet pan nearby so that I can place the completed pieces on the pan and ready to air fry.
Preheat your air fryer to 400°F (204°C) on the air fry setting and set the timer for 10 minutes.
Add the chicken to your air fryer basket in a single layer. Spray the top lightly with oil and air fry at 400°F (204°C) for 8-10 minutes. Shake the basket half way through. Pull the chicken out when the breading has turned a golden brown color and the chicken is finished cooking. In my air fryer this takes right around 8 minutes.
You will need to cook in batches as to not over crowd your air fryer. Store the finished chicken on a wire lined baking sheet to cool.