01 - Whisk together buttermilk and hot sauce in a large bowl. Add chicken pieces, coating thoroughly. Cover and refrigerate for at least 4 hours or overnight for optimal tenderness.
02 - Combine flour, baking powder, baking soda, sugar, and salt in a large bowl. Cut in cold butter using a pastry cutter until mixture resembles coarse crumbs. Add cold buttermilk and mix just until dough comes together. Turn onto floured surface, pat to 3/4-inch thickness, fold in half, and repeat twice for flaky layers.
03 - Cut biscuits with a 2-inch cutter and place on parchment-lined baking sheet, arranged close together for soft sides. Brush tops with buttermilk. Bake at 425°F for 12–15 minutes until golden brown. Cool slightly before serving.
04 - Mix flour, paprika, garlic powder, onion powder, salt, black pepper, and cayenne in a shallow dish. Remove chicken from marinade, allowing excess to drip off. Press each piece firmly into seasoned flour mixture to coat thoroughly. Let coated chicken rest for 10 minutes to help coating adhere.
05 - Heat 1–2 inches vegetable oil in a heavy skillet to 350°F. Fry chicken in batches without overcrowding, turning occasionally, until golden brown and cooked through—approximately 15–18 minutes for dark meat, 12–15 minutes for white meat. Drain on wire rack or paper towels.
06 - Serve hot fried chicken alongside warm, freshly baked biscuits. Offer honey, hot sauce, or gravy as condiments.