The 15-minute rest after dredging is the key to keeping the crust attached — do not skip it. Fry in batches so the oil stays hot, and always drain on a wire rack, not paper towels. Cooked chicken keeps in the fridge for up to 3 days; reheat on a wire rack at 400°F for 8–10 minutes. The gravy freezes well for up to a month, but the crust will not survive freezing. For gluten-free, use a 1:1 gluten-free flour blend. For dairy-free, use lemon-acidulated oat milk and a plant-based roux.