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Balsamic Flank Steak with Chimichurri Sauce

  • Author: The Real Food Dietitians
  • Prep Time: 4 hours 15 mins
  • Cook Time: 20 mins
  • Total Time: 4 hours 35 mins
  • Yield: 4 1x



Chimichurri Sauce:

  • 1 cup fresh parsley
  • 1 large clove garlic
  • 2 Tbsp. avocado oil (may substitute olive oil)
  • 1 Tbsp water
  • ¼ tsp. salt
  • ⅛ tsp. black pepper
  • Juice of ½ lemon
  • Pinch of red pepper flakes (optional)

*May substitute 1/4 cup balsamic vinegar, 3 Tbsp. avocado oil, 1/2 tsp. garlic powder, 1/4 tsp. onion powder, 2 tsp. dried Italian seasoning, plus 1/8 tsp. black pepper. 


  1. Place flank steak in a large zip-top bag. Add vinaigrette (or substitute). Seal bag and gently massage steak to coat. Place in refrigerator to marinate up to 24 hours, flipping bag once or twice during the process (if possible).
  2. When ready to prepare steak, remove from bag from the fridge and allow to sit at room temperature for 20 minutes while grill preheats.
  3. Preheat grill to high heat (400-450℉)
  4. Remove steak from bag and place on a clean plate. Sprinkle both sides with salt and pepper.
  5. When grill is hot, remove steak from bag and discard marinade. Place on grill grate over direct heat. Grill 5-6 minutes then flip steak and grill an additional 5-6 minutes or until the desired degree of doneness. Note: Flank steak is best served medium-rare.
  6. Remove steak to a clean plate and allow to rest for 5 minutes before slicing diagonally across the grain.


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  • Serving Size: 4 oz. Steak + 2 Tbsp. Sauce
  • Calories: 259
  • Sugar: 0g
  • Sodium: 169mg
  • Fat: 19g
  • Carbohydrates: 2g
  • Fiber: 0g
  • Protein: 20g