Reverse seared pork is cooked in two stages; first in the oven and then in a hot skillet on the stovetop to sear it. Take the pork out of the oven when it reaches 110F, this will take about 30 minutes at 250F. Don't worry, when you take it out it will not look fully cooked, but we finish cooking in in the hot skillet which will get the temperature up to 145F and it will be fully cooked through. Be sure to use an instant read thermometer for the best results.