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Grilled Flank Steak with Crispy Potatoes & Chimichurri

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Yield 4
Prep Time 15 minutes
Cook Time 45 minutes
Total Time 1 hour

Ingredients

Crispy Smashed Potatoes

  • 2 lbs Fingerling Potatoes
  • 1 tbsp Kosher Salt for Boiling
  • 3-4 tbsp Olive Oil
  • 1 tsp Kosher Salt for Seasoning

Chimichurri

  • 1 cup Flat-Leaf Parsley
  • 2 cloves Garlic
  • Juice of 1 Lemon
  • 1/3 cup Extra Virgin Olive Oil
  • 1 tsp Sea Salt
  • 1/2 tsp Black Pepper
  • 1/4 tsp Red Pepper Flakes

Flank Steak

  • 2 lbs Skirt or Flat Iron steak (room temperature)
  • 1 tsp Kosher Salt
  • 1/4 tsp Freshly Ground Black pepper

Instructions

Crispy Smashed Potatoes

  • 1. Bring a pot of water to boil and add 1 tablespoon salt. Cook the potatoes until soft, about 20-25 minutes for small potatoes, 30 minutes for medium. It’s fine if the skin splits.
  • 2. Preheat the oven to 400°F.
  • 3. Drain the potatoes and let them dry in the colander for 5 minutes.
  • 4. Place the potatoes on a baking sheet and smash each one gently with a glass. The thinner they are, the crispier they will get; thicker ones will be fluffy inside.
  • 5. Let them steam dry for 5 minutes on the tray, then drizzle generously with olive oil and sprinkle with salt. Flip the potatoes, coat with more oil, and season again.
  • 6. Bake for 30-40 minutes, checking for crispiness, but ensuring they don’t burn.

Chimichurri

  • 1. In a small bowl, combine minced parsley, garlic, lemon juice, olive oil, sea salt, black pepper, and red pepper flakes. Stir to combine.
  • 2. Use immediately, or store in the fridge for up to 3 days.

Flank Steak

  • 1. Preheat the grill to high heat. Pat the steak dry with paper towels and season generously with kosher salt and black pepper.
  • 2. Grill the steak, without moving it, for 4-5 minutes until slightly charred. Flip the steak and cook for an additional 3-5 minutes for medium-rare (135°F), 5-7 minutes for medium (140°F), or 8-10 minutes for medium-well (150°F).
  • 3. Transfer the steak to a cutting board, tent with foil, and let rest for 5 minutes.
  • 4. Slice against the grain and serve with chimichurri sauce.

Notes

Ingredient Notes:

  • Flat-Leaf Parsley: Bright, herbaceous, and full of vitamin K—parsley brings the signature freshness to chimichurri. You can sub in cilantro or use a mix of both for a twist.
  • Garlic: Just a couple of cloves go a long way in the chimichurri. Mince finely for even flavor distribution.
  • Lemon Juice: Adds zippy brightness to the sauce. Freshly squeezed makes all the difference.
  • Olive Oil: Use a good-quality extra virgin olive oil for both the chimichurri and crispy potatoes—it’s worth it!
  • Flank Steak: This lean, flavorful cut shines when grilled hot and fast. Skirt steak or flat iron are great alternatives—just be sure to slice against the grain for maximum tenderness.
  • Baby or Fingerling Potatoes: These little guys are naturally creamy and perfect for smashing. The thinner you smash them, the crispier they’ll get in the oven.
  • Red Pepper Flakes: Just a pinch gives the chimichurri a gentle kick. Adjust to your heat preference.
  • Kosher Salt & Black Pepper: Simple seasonings that bring everything to life. Be generous, especially with the steak and potatoes.

Customization Ideas:

  • Protein Options: This recipe works best with skirt or flat iron steak. Chicken thighs, pork chops, or grilled tofu can be used in place of the steak for different protein options.
  • Scaling: This recipe is easily scalable for more servings by increasing the steak and potatoes. Adjust baking time as needed if using a larger quantity.
  • Meal Prep: The chimichurri sauce can be made ahead and stored in the fridge for up to 3 days. The potatoes can be prepped and roasted in advance, then reheated in the oven. Steak can be grilled and stored in the fridge for up to 2 days before slicing.
  • Substitutes: Chimichurri can be made with all sorts of fresh herbs! We prefer parsley or cilantro, or a combination of the two. Some recipes call for the addition of oregano as well!

Storage Instructions:

  • Refrigerator: Store leftovers in an airtight container for up to 3 days.
  • Freezer: Steak and chimichurri sauce can be frozen for up to 1 month.