If you’re looking for a quick and easy way to cook flank steak, the Blackstone grill is an excellent option. This versatile cooking tool can help you achieve a perfectly cooked steak in no time.

But, how long do you cook flank steak on a Blackstone? In this tutorial, we’ll walk you through the steps of cooking this delicious cut of meat on your Blackstone grill.

What is Flank Steak?

Before we dive into the cooking process, let’s take a quick look at what flank steak is. Flank steak comes from the abdominal muscles of a cow and is known for its rich flavor and tender texture. It’s also a relatively lean cut of meat, making it an excellent choice for those who are watching their fat intake.

Preparing Your Flank Steak

Before cooking your flank steak on the Blackstone grill, make sure to prepare it properly. Start by seasoning your meat with salt and pepper or any other seasoning of your choice. You can also marinate your steak for added flavor.

Marinating Your Flank Steak

To marinate your flank steak, mix together olive oil, soy sauce, Worcestershire sauce, garlic powder, and any other seasonings you prefer in a large bowl or resealable plastic bag. Add your flank steak to the marinade and refrigerate for at least 30 minutes or up to 24 hours.

Cooking Your Flank Steak

Once your flank steak is seasoned or marinated, it’s time to cook it on the Blackstone grill.

  • Preheat your Blackstone grill to high heat.
  • Place your seasoned or marinated flank steak on the hot griddle.
  • Cook for 4-5 minutes per side for medium-rare doneness.
  • Flip the steak only once during cooking to ensure even cooking on both sides.
  • Use a meat thermometer to check the internal temperature of your steak. For medium-rare, the internal temperature should be around 135°F.
  • Once your steak is cooked to your desired doneness, remove it from the grill and let it rest for a few minutes before slicing.

Serving Your Flank Steak

Now that your flank steak is cooked to perfection, it’s time to serve it up! Slice your steak against the grain and serve with your favorite sides. Some popular options include roasted vegetables, mashed potatoes, or a simple salad.

Tips for Cooking Flank Steak on a Blackstone Grill

  • Make sure your grill is hot before adding the steak to ensure a good sear.
  • Don’t overcook your flank steak as it can become tough and Chewy. Stick to the recommended cooking times for optimal results.
  • Let your flank steak rest for a few minutes before slicing to allow the juices to redistribute throughout the meat.


Cooking flank steak on a Blackstone grill is an easy and delicious way to enjoy this flavorful cut of meat. By following these simple steps, you’ll have perfectly cooked flank steak in no time. So fire up that Blackstone grill and get ready for an unforgettable meal!