Go Back
Homemade Sous Vide Flank Steak photo

Sous Vide Flank Steak

This Sous Vide Flank Steak is incredibly tender and bursting with flavor! Elevate your dinner with this foolproof cooking method.
Print Recipe Pin Recipe
Prep Time 30 minutes
Cook Time 4 hours
Total Time 4 hours 30 minutes
Servings: 4 servings
Course: Main Course
Cuisine: American
Ingredients Equipment Method Notes

Ingredients
  

For the Marinade:
  • 32 ounces flank steak
  • 2 teaspoons salt
  • 1 teaspoon pepper adjust to taste
  • 1 teaspoon garlic powder
  • 1 teaspoon chili flakes
  • 2 tablespoons balsamic vinegar
  • 1 tablespoon Dijon mustard
  • 2 tablespoons butter for finishing

Equipment

  • Sous vide immersion circulator
  • Vacuum sealer or resealable freezer bags
  • Large pot or sous vide container
  • Cast iron skillet or grill
  • Instant-read thermometer

Method
 

Instructions
  1. In a small bowl, combine the salt, pepper, garlic powder, chili flakes, balsamic vinegar, and Dijon mustard. Mix well until you have a smooth paste.
  2. Rub the marinade all over the flank steak, ensuring it's evenly coated. Let it sit for 30 minutes at room temperature to absorb the flavors.
  3. Place the seasoned flank steak in a vacuum-seal bag or a resealable freezer bag. If using a resealable bag, use the water displacement method to remove as much air as possible before sealing.
  4. Fill a large pot or sous vide container with water and set your immersion circulator to 131°F (55°C) for medium-rare doneness. For medium, set it to 140°F (60°C).
  5. Once the water has reached the desired temperature, submerge the sealed bag with the flank steak. Cook for 2 to 4 hours.
  6. After cooking, carefully remove the steak from the bag and pat it dry with paper towels.
  7. Heat a cast iron skillet or grill over high heat. Add butter and let it melt, then sear the steak for about 1-2 minutes on each side until a golden-brown crust forms.
  8. Let the steak rest for 5-10 minutes before slicing against the grain for maximum tenderness.

Notes

  • For a more intense flavor, marinate the steak overnight.
  • Experiment with different spices or herbs to customize the flavor to your liking.
  • Ensure the steak is fully submerged during the sous vide process for even cooking.