Step 1

Combine the buttermilk, mustard, 1/2 teaspoon cayenne and 1 teaspoon each garlic powder, onion powder, salt and pepper in a large bowl or resealable plastic bag. Add the chicken and thyme sprigs and let marinate 8 hours or overnight.

Step 2

Stir together the chopped thyme, flour, paprika, oregano, remaining 1/2 teaspoon cayenne and 1 teaspoon each garlic powder and onion powder in a large baking dish; season generously with salt and pepper. Drizzle about 1/4 cup of the buttermilk marinade over the flour mixture, mixing with a fork until craggy in texture.

Step 3

Remove the chicken from the marinade, letting the excess drip off. Dip in the flour mixture to coat well, then transfer to a plate.

Step 4

Preheat a 6-quart air fryer to 375˚ F. Coat half of the chicken with cooking spray; arrange in the air fryer basket in a single layer. Cook until crispy, 15 minutes, flipping halfway through. Cook the remaining chicken. Serve with potato salad and cornbread.