In a medium sized mixing bowl, combine the djion mustard, honey, mayonnaise, lemon juice, cayenne pepper, and salt. Divide the mixture in half to save for dipping later.
Add the buttermilk to the mixture in the mixing bowl, then place the chicken tenders in the bowl and toss to coat. Sit aside to marinate while you prepare everything else.
Using a food processor, pulse the pretzels until they create a fine crumb like consistency. Alternatively, put the pretzels in a large sealable bag and use a rolling pin to crush into crumbs. Transfer the pretzel crumbs to a shallow dish.
Coat each chicken tender, one at a time, in the honey mustard sauce and then the ground pretzels. Make sure the chicken is well coated. Place the prepared chicken on a baking sheet and set aside.
Air fry the chicken tenders for 15-20 minutes or until the internal temperature has reached 165° F.
Oven instructions:
Preheat the oven to 425° F.
Bake the chicken for 15-20 minutes, or until the internal temperature has reached 165° F.