01 - Whisk together buttermilk and hot sauce in a bowl. Submerge chicken thigh halves, ensuring full coating. Cover and refrigerate for at least 20 minutes or overnight for enhanced flavor.
02 - Combine all-purpose flour, cornstarch, kosher salt, black pepper, smoked paprika, and garlic powder in a separate bowl. Mix thoroughly to ensure even distribution.
03 - Remove chicken from marinade, allowing excess to drain. Generously dredge each piece in flour mixture, pressing to coat completely. Place coated chicken on a rack and let rest for 5 minutes.
04 - Pour approximately 2 inches of vegetable oil into a heavy skillet or Dutch oven. Heat to 350°F (175°C) and monitor temperature for consistent frying.
05 - Fry chicken pieces in batches, 4 to 5 minutes per side, until golden and crisp, and internal temperature reaches 165°F (74°C). Transfer to a paper towel-lined plate to drain excess oil.
06 - Combine honey, hot sauce, chili flakes, and unsalted butter in a small saucepan. Warm gently over low heat, stirring until butter melts and mixture is fully blended. Remove from heat.
07 - Toss shredded green cabbage and carrots with mayonnaise, apple cider vinegar, sugar, salt, and black pepper in a bowl. Refrigerate until ready to serve.
08 - Brush each fried chicken piece thoroughly with prepared hot honey for a glossy, spicy finish.
09 - Arrange a spoonful of slaw on the bottom half of each brioche bun. Top with a hot honey-glazed chicken piece and two dill pickle chips. Cap with the top bun. Serve immediately.