Set the precision cooker to 130 degrees. Sprinkle steaks with salt and pepper on both sides. Add each steak to a separate vacuum-sealable bag with half the garlic and 1-2 sprigs of thyme. Seal the bags
Submerge the bags in the water carefully using tongs. Cook for 2-2 ½ hours for medium-rare, or up to 4 hours for more doneness
Pat steaks dry after removing them from their bags. On a preheated skillet with oil, sear the steaks on each side for 2-3 minutes until golden brown. Place steaks on a plate tented with foil. Rest for 5-10 minutes