A cast iron wok is a versatile cooking vessel made from cast iron, known for its excellent heat retention and even cooking. It features a rounded bottom and high, sloping sides, making it ideal for stir-frying, deep-frying, and steaming. The material allows for high-temperature cooking, which is essential for achieving the perfect sear on meats and vegetables. To maintain a cast iron wok, it requires seasoning, which involves applying a layer of oil and heating it to create a non-stick surface. This process enhances its durability and prevents rust. With proper care, a cast iron wok can last for generations, becoming a cherished kitchen tool.