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, steaming, and deep-frying. The material allows for high-temperature cooking, which is essential for achieving the perfect sear on meats and vegetables. Unlike non-stick woks, a cast iron wok develops a natural non-stick surface when seasoned properly. This seasoning process involves applying oil and heating the wok, creating a protective layer that enhances flavor and prevents rust. With proper care, a cast iron wok can last for generations, making it a valuable addition to any kitchen.