របៀប ឬ វិធី បំពងស្បែកជ្រូកមិនឲ្យខ្ទាតខ្លាញ់ ហើយស្រួយឆ្ងាញ់ | วิธีทอดหนังหมูไม่ให้มันเยิ้มและกรอบ