01 - In a large bowl, whisk together the buttermilk, hot sauce, sea salt, and black pepper until well combined. Add the chicken pieces, turning to coat evenly. Cover tightly and refrigerate for at least 2 hours or up to overnight for deeper flavor penetration.
02 - In a separate large bowl or shallow dish, combine the all-purpose flour, cornstarch, paprika, garlic powder, onion powder, cayenne pepper, salt, and black pepper. Whisk thoroughly to ensure even distribution of all seasonings.
03 - Remove chicken pieces from the marinade, allowing excess buttermilk to drip off. Dredge each piece in the seasoned flour mixture, pressing firmly on all sides to build a thick, even coating. Arrange the coated pieces on a wire rack and let rest for 10 minutes to allow the coating to adhere properly.
04 - Pour vegetable oil to a depth of 2 inches into a heavy-bottomed skillet or deep fryer. Heat over medium-high heat until the oil reaches 350°F (175°C). Use a thermometer to monitor and maintain consistent temperature throughout frying.
05 - Carefully lower chicken pieces into the hot oil in batches, avoiding overcrowding. Fry for 12–15 minutes, turning occasionally, until deeply golden brown and the internal temperature registers 165°F (74°C). Transfer finished pieces to a paper towel-lined plate or wire rack to drain.
06 - While the chicken fries, melt the unsalted butter in a small saucepan over medium heat. Add the honey, hot sauce, crushed red pepper flakes if using, and a pinch of salt. Stir continuously and simmer for 1 minute until the glaze is smooth and well blended.
07 - Drizzle the spicy honey butter glaze generously over the fried chicken, or toss the pieces directly in the saucepan to coat evenly. Serve immediately while the chicken remains crispy and the glaze is warm.