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sliced matambre
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4.65 from 64 votes

Matambre - Argentinian Stuffed Flank Steak

This Matambre is an Argentinian Stuffed Flank Steak with hard boiled eggs, bell peppers, a mixture of cilantro, garlic and olive oil. The matambre is then grilled to perfection and cut into thin slices before enjoying.
Prep Time15 mins
Cook Time20 mins
Total Time35 mins
Course: Main Course
Cuisine: Argentinian
Keyword: flank steak, matambre, stuffed flank steak
Servings: 4
Calories: 484kcal


  • 2 pound flank steak
  • 1/4 cup olive oil
  • 5 cloves garlic minced
  • 1/4 cup cilantro chopped
  • 1/4 cup parsley chopped
  • 1/2 teaspoon salt
  • 1/2 teaspoon ground black pepper
  • 1/8 teaspoon red pepper flakes
  • 2 hard boiled eggs quartered
  • 1/2 green bell pepper sliced
  • 1/2 red bell pepper sliced


  • Prepare grill: Prepare your grill for cooking over medium direct heat.
  • Butterfly the flank steak: Using a sharp knife slice it and open it up like a book (see instructions above for how to butterfly a flank steak). If you want to make the meat thinner, you can pound it with a mallet to flatten it out and even out the thickness
  • Make chimichurri: In a small bowl mix together the olive oil, cilantro, parsley, garlic, salt, black pepper and red pepper flakes.
  • Spread sauce over steak: Spread the cilantro and parsley mixture over the flank steak, and brush it evenly over the entire surface of the steak.
  • Assemble matambre: Arrange the quartered eggs in 3 rows across the flank steak at different intervals. Repeat with the sliced peppers. Carefully roll the meat up over the filling, I did it from left to right, across the grain, jelly roll style. Tie with butcher's twine to hold it together. Season the outside of the roll generously with salt and pepper.
  • Grill: The temperature on your grill should read around 400 F degrees. Place the roll on the grill and grill on both sides for about 4 or 5 minutes per side, about 20 minutes in total.
  • Rest: Let the roll rest for 15 minutes before slicing into it.


If the inside of the matambre is not done to your liking and prefer the meat more well done, place the roll in a baking dish and roast in the oven for another 20 minutes at 400 F degrees. You can also put it back on the grill, cover it with aluminum foil so it doesn’t burn and continue grilling it for a few more minutes until done to your liking.
Oven instructions: Preheat your oven to 350 F degrees. Place the roll seam-side down on an aluminum foil lined baking sheet. Bake the matambre for 1 hour. Remove from the oven and let it rest for 10 minutes before slicing into it.
Leftovers: Transfer leftover matambre to an airtight container and refrigerate for up to 3 days. I wouldn’t keep it longer because of the hard boiled eggs.
Nutrition: Please keep in mind that nutritional information is a rough estimate and can vary greatly based on products used.


Calories: 484kcal | Carbohydrates: 3g | Protein: 52g | Fat: 27g | Saturated Fat: 7g | Cholesterol: 229mg | Sodium: 447mg | Potassium: 898mg | Sugar: 1g | Vitamin A: 1055IU | Vitamin C: 37.4mg | Calcium: 72mg | Iron: 4.3mg