Balsamic Flat Iron Steak

When it comes to simple recipes, it really doesn’t get much easier than this one for grilled flat iron steak that is marinated in balsamic vinegar. The balsamic gives the meat a slightly sweet and tart flavor that is unbeatable. 



  • 1 (1 1/2- to 2-pound) flat iron steak
  • 1/4 cup balsamic vinegar
  • 3 Tbsp olive oil
  • 1 tsp. salt
  • 1/2 tsp. freshly ground black pepper


  1. Using a fork, prick the steak on both sides all over. This will allow the marinade to penetrate and flavor the meat. 
  2. In a bowl, combine the remaining ingredients and mix well. 
  3. Place the steak into a Zip-loc bag or shallow dish. Pour the marinade over the steak, coating both sides. Refrigerate the steak and marinade for at least one hour and up to 24 hours. 
  4. Let the steak come to room temperature before grilling. 
  5. Cook the steak over medium heat for 3 to 4 minutes on each side, turning once, until medium doneness.
  6. Place the steak on a cutting board, cover with aluminum foil, and let stand for 5 minutes.
  7. Slice the steak against the grain and enjoy. 
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