There are several steps you can take if you want super crispy chicken strips! First, start with patting your chicken dry before the egg wash so that the breading stays on the tenderloin. Second, you can chill the breaded chicken for 30 minutes or longer (up to 24 hours) so that the breading sticks well and there's no excess moisture that could lead to sogginess. The air fryer will produce crispier breading than the oven, especially if you give it a quick spray with oil.