Set a 12” stainless steel
skillet with straight sides (or something similar) over high heat. Add the oil. When the oil is hot, add the cabbage, salt, and stir. Cook covered stirring occasionally until you develop a lot of browning. Once you are halfway there, start dropping the heat and checking the cabbage more frequently. This will take about 25 minutes. If the
skillet is ever dry, add the butter or more oil.