<human>:  How to properly season a cast iron skillet?
<bot>: The best way to season a cast iron skillet is to coat it in a thin layer of oil, such as vegetable or olive oil. Then, place it in a warm oven at 300-400 degrees Fahrenheit (150-200 degrees Celsius) for 1 hour. After an hour, turn the oven off, and leave the skillet in the oven until it cools. This will create a protective layer that will season the skillet and make it easier to clean.