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Garlic Butter Flat Iron Steak

If you’re looking for a restaurant-quality steak dinner that’s surprisingly easy to make at home, this Garlic Butter Flat Iron Steak is the recipe for you. 
Print Recipe
Prep Time 10 minutes
Cook Time 10 minutes
Rest 10 minutes
Total Time 30 minutes
Servings: 4 Servings
Course: Main Course
Cuisine: American
Calories: 430
Ingredients Method Notes

Ingredients
  

  • 1 pound flat iron steak
  • 1 teaspoon kosher salt
  • 1 teaspoon black pepper
  • 1 teaspoon garlic powder
  • 1 tablespoon olive oil
Garlic Butter
  • 4 tablespoons butter
  • 4 cloves garlic minced
  • 1 tablespoon fresh parsley chopped
  • 1 teaspoon fresh thyme optional

Method
 

Prepare the Steak
  1. Remove the steak from the refrigerator ~ 30 minutes before cooking. Pat dry with paper towels.
  2. Season both sides generously with salt, pepper, and garlic powder.
Cooking
  1. Heat a cast iron skillet over medium-high heat until very hot. Add the olive oil.
  2. Place the steak in the skillet and cook for:
  3. 4–5 minutes per side for medium-rare
  4. 5–6 minutes per side for medium
  5. Adjust cooking time depending on thickness.
Finishing
  1. Reduce the heat to medium.
  2. Add the butter, garlic, parsley, and thyme to the skillet. Once the butter melts, spoon it continuously over the steak for 1–2 minutes.
  3. Transfer the steak to a cutting board and let it rest for 5–10 minutes.
  4. Slice against the grain and drizzle with the remaining garlic butter before serving.
  5. Serve and enjoy

Notes

Pro Tips
  • Let the steak come to room temperature before cooking.
  • Pat the steak dry to get a beautiful crust.
  • Always slice against the grain for maximum tenderness.
  • Use a meat thermometer for perfect doneness.
  • Don’t skip resting the steak—it keeps the juices inside.
Steak Temperature Guide
  • Rare: 120–125°F
  • Medium Rare: 130–135°F
  • Medium: 140–145°F
  • Medium Well: 150–155°F
  • Well Done: 160°F+