01 - Combine buttermilk and hot sauce in a large bowl. Add chicken pieces, turn to coat thoroughly. Cover and refrigerate for at least 2 hours or overnight for maximum tenderness.
02 - Preheat oven to 450°F. Whisk flour, baking powder, baking soda, and salt in a large bowl. Cut in cold butter until mixture resembles coarse crumbs. Pour in buttermilk and stir just until combined.
03 - Turn dough onto a floured surface and gently pat to 3/4-inch thickness. Fold dough over itself 2-3 times for flaky layers, then pat out again. Cut using a 2.5-inch round cutter. Place on parchment-lined baking sheet and bake 12-15 minutes until golden. Brush with honey if desired.
04 - Combine flour, paprika, garlic powder, onion powder, cayenne, salt, and black pepper in a large bowl. Remove chicken from marinade, allowing excess to drip off. Dredge each piece thoroughly in seasoned flour, pressing coating to adhere.
05 - Heat 1.5 inches of oil in a deep skillet or Dutch oven to 350°F. Fry chicken in batches, turning occasionally, until golden brown and internal temperature reaches 165°F, about 12-15 minutes per batch. Drain on wire rack or paper towels.
06 - Plate warm fried chicken alongside hot buttermilk biscuits. Serve immediately while both are at optimal temperature.