• In a small bowl, combine the mayonnaise, mustard, thyme, salt, and pepper.
• Coat the chicken with the mayonnaise mixture. Allow the chicken to sit for at least 15 minutes- If possible, do this up to one day ahead of time.
• Place the parmesan and baking powder in a shallow dish and stir to combine. Dredge the chicken in the cheese mixture, pressing the cheese into the make.

Oven

• Preheat the oven to 450°F.
• Put an oven-safe wire rack over a baking sheet.
• Spray the chicken with oil.
• Arrange the chicken on the wire rack and bake for 18 to 22 minutes, flipping halfway through, until the chicken is cooked through and an instant-read thermometer registers 160° F.
• Allow to rest for 10 minutes before serving.

Stove Top

• Heat oil in a heavy-duty skillet.
• Add the chicken, and cook for 10 to 12 minutes, flipping when a parmesan crust is golden brown. Remove from the pan when an instant-read thermometer registers 160° F.
• Allow to rest for 10 minutes prior to serving.

Air Fryer

• Preheat the air fryer to 375° F. Line your air fryer with an air fryer liner.
• Spray the chicken with oil and arrange in a single layer in the air fryer.
• Cook for 15 to 18 minutes, until the chicken is golden brown and an instant-read thermometer registers 160° F.