1Place the pretzels in a food processor bowl and process to form coarse crumbs. Transfer to a bowl.
2Combine the flour and salt in a bowl. Whisk the eggs in a separate bowl.
3Working with one piece at a time, place the chicken in the flour and toss to coat. Dip in the eggs then coat in the crumbs.
4Cover and refrigerate for 1 hour to allow the crust to set and prevent it falling off. Meanwhile, make the dressing.
5To make the ranch dressing, whisk the mayonnaise, sour cream, vinegar, mustard, salt and garlic until smooth. Add the herbs. Cover and refrigerate until required.
6Set the oven to Air Fry, Super Convection, 450°F, for 13 minutes, enable Rotate Remind and press Start to preheat. Meanwhile, continue to the next step.
7Generously spray the chicken with the cooking spray. Place, sprayed side down, in a single layer in the air fry basket, ensuring they are not touching. Spray the top side to coat.
8Once preheated, place the basket in rack position 3 and air fry for 13 minutes. When the Rotate Remind signals, turn the chicken over and continue air frying.
9The chicken should be golden and crisp. If not, air fry a little longer.
10Sprinkle the chicken with sea salt and serve with the ranch dressing.