This aromatic citrus steak marinade gives cast iron flank steak a zesty, summer flavor. Marinate the flank steak at least 1 hour and up to 24 hours before searing it quickly in a cast iron skillet.
This citrus marinade both flavors and tenderizes the meat. Marinate the meat for at least 1 hour, and up to 24 hours. After 24 hours, the citrus will start to over-tenderize.
If you're making 2 pounds of flank steak, you'll probably have to cut the steak into two smaller pieces and cook each piece separately so the skillet isn't overcrowded.
The cooking time for steak can vary, but as a guideline cook flank steak for about 3 to 4 minutes on each side for medium rare or 5 minutes on each side for medium. However, the best indicator of doneness is temperature, not time. You should take flank steak out of the skillet when it's five degrees cooler than your desired doneness. A medium rare flank steak should have a final internal temperature of 130–135°F and medium steak has a temperature of 135–145° in the thickest part.
You can substitute skirt steak for flank steak.
Find it online: https://www.kitchenskip.com/citrus-basil-flank-steak/