<human>:  How do I cook a medium-rare steak?
<bot>: Start by seasoning the steak with salt and pepper and then heat a pan over medium-high heat. Add a tablespoon or two of oil or butter to the pan and let it heat up for a minute or two. Place the steak in the pan and cook it for about three minutes on each side. Start checking the steak with a thermometer after five minutes of total cooking time to make sure it reaches an internal temperature of 135-140°F for a medium-rare steak. Once it reaches the desired temperature, remove the steak from the heat and let it rest for five to 10 minutes before serving.