Learn how to cut flank steak against the grain so you can actually chew and enjoy it. This simple cutting technique is THE secret to tender flank steak!
Place the cooked flank steak on a cutting board and let it rest for least 5-10 minutes before slicing to allow the juices to redistribute throughout the meat.
Look for and identify the direction of the grain - the muscle fibers running through the meat and ensure your steak is positioned with the grain running lengthwise.
Using a sharp knife, hold it at a 45-degree angle to the steak and begin slicing against the grain. Cut thin, even slices of about ¼ inch thickness using a smooth back-and-forth motion.