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Juicy broiled flank steak sliced on a wooden cutting board, garnished with fresh herbs.

Keto-Friendly Broiled Flank Steak: A Low-Carb Dinner Recipe

Quick to prepare and bursting with flavor, it's a must-try for steak lovers following a ketogenic diet.
Prep Time 10 minutes
Cook Time 10 minutes
Servings 3 people

Ingredients
  

Ingredients for Keto-Friendly Broiled Flank Steak

  • 1.5 to 2 pounds flank steak
  • ¼ cup olive oil
  • 3 tablespoons soy sauce
  • 2 tablespoons apple cider vinegar
  • 2 cloves garlic
  • 1 teaspoon smoked paprika
  • 1 teaspoon onion powder
  • ½ teaspoon black pepper
  • ½ teaspoon sea salt
  • ½ teaspoon red pepper flakes optional, for a touch of heat
  • 1 tablespoon fresh rosemary
  • 1 tablespoon fresh thyme

Instructions
 

Step-by-Step Directions for Keto-Friendly Broiled Flank Steak

  • Step 1: Prepare the Marinade
  • In a medium-sized bowl, whisk together 1/4 cup olive oil, 3 tablespoons soy sauce, 2 tablespoons apple cider vinegar, 2 minced garlic cloves, 1 teaspoon smoked paprika, 1 teaspoon onion powder, 1/2 teaspoon black pepper, 1/2 teaspoon sea salt, 1/2 teaspoon red pepper flakes (optional), 1 tablespoon fresh rosemary, and 1 tablespoon fresh thyme.
  • Place the 1.5 to 2 pounds flank steak in a large resealable plastic bag or shallow dish. Pour the marinade over the steak, ensuring it’s fully coated. Seal the bag or cover the dish, then refrigerate for at least 1 hour (or up to 4 hours for deeper flavor).
  • Step 2: Preheat the Broiler
  • While the steak marinates, preheat your broiler to high. Adjust the oven rack to the top position, about 4-6 inches from the broiler element.
  • Line a broiler pan or baking sheet with foil for easy cleanup. Place a wire rack on top to allow air circulation and even cooking.
  • Step 3: Prepare the Steak for Broiling
  • Remove the steak from the marinade, letting any excess drip off. Discard the remaining marinade.
  • Pat the steak dry with paper towels to ensure a good sear. Place it on the prepared wire rack.
  • Step 4: Broil the Steak
  • Broil the flank steak for 5-6 minutes per side for medium-rare, or until the internal temperature reaches 130°F (54°C) on a meat thermometer. For medium, cook until the thermometer reads 140°F (60°C).
  • Keep a close eye on the steak to prevent burning, as broiling can cook food quickly.
  • Step 5: Rest and Slice the Steak
  • Once cooked, transfer the steak to a cutting board and let it rest for 10 minutes. This allows the juices to redistribute, ensuring a moist and tender result.
  • After resting, cut the steak against the grain into thin slices. This step is crucial for achieving the most tender texture.
  • Step 6: Serve and Enjoy
  • Serve your Keto-Friendly Broiled Flank Steak with your favorite low-carb sides, such as roasted vegetables, cauliflower mash, or a fresh green salad.