<human>:  What's the best way to cook a steak to medium rare?
<bot>: The best way to cook a steak to medium rare is to use a cast iron skillet. First, preheat the skillet over medium-high heat for several minutes. Once heated, add a tablespoon of oil or butter and let it heat up. Add the steak and let it cook for about 3 minutes before flipping. Allow the steak to cook for another 3 minutes before removing it from the pan and let it rest for about 5 minutes. Cooking time will depend on the thickness of the steak, so keep an eye on it and use a thermometer to make sure the internal temperature is around 135-145°F (medium rare). Enjoy!