How to Make Flat Iron Steak with Mushroom Sauce - A Step-by-Step Guide

Flat iron steak is a popular cut of beef known for its rich flavor and tenderness. When paired with a creamy mushroom sauce, it becomes a delectable dish that is perfect for any special occasion or just a satisfying weeknight dinner. This recipe for Flat Iron Steak with Mushroom Sauce is simple to prepare, yet it delivers a complex and indulgent taste that will impress your family and guests.

The key to making the perfect flat iron steak is to start with a high-quality cut of meat. Lo...

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Ingredients

  • 1 (1 pound) flat iron steak
  • 1 ½ teaspoons kosher salt
  • 1 teaspoon freshly ground black pepper
  • ½ teaspoon garlic powder
  • ½ teaspoon onion powder
  • 1 tablespoon vegetable oil, divided
  • ½ pound cremini mushrooms
  • ½ cup Burgundy wine
  • 1 cup beef stock
  • 1 tablespoon butter, softened
  • 1 tablespoon all-purpose flour
  • ½ cup heavy whipping cream
  • 2 tablespoons chopped fresh chives

Information

  • Prep Time: 20 mins
  • Cook Time: 35 mins
  • Total Time: 55 mins
  • Servings: 4
  • Yield: 4 servings

  • Preheat oven to 325 degrees F (165 degrees C).
  • Sprinkle both sides of flat iron steak with salt, black pepper, garlic powder, and onion powder. Heat a heavy, oven-proof skillet over medium-high heat, pour 2 teaspoons vegetable oil into the hot skillet, and heat until oil shimmers. Sear steak in the hot oil until well browned, about 3 minutes per side. Remove steak from pan and reduce heat to medium.
  • Pour 1 more teaspoon vegetable oil into skillet; cook and stir cremini mushrooms in hot oil until wilted and browned, about 10 minutes. Lower heat to medium-low; pour wine into mushrooms and bring to a boil. Cook until wine is slightly reduced, 3 to 5 minutes; add beef stock to vegetable mixture. Bring mixture to a simmer.
  • Stir butter and flour into a paste in a small bowl, using a fork. Stir flour paste into mushroom mixture and simmer until sauce is thickened, about 5 minutes. Place flat iron steak into skillet with mushroom sauce.
  • Place skillet in preheated oven and cook until steak is barely pink inside, about 10 minutes. Cut steak into thin slices on the diagonal and place meat on a platter.
  • Stir cream into mushroom sauce until heated through, 1 to 2 minutes; pour over steak and garnish with chives.
  • Nutrition

    437 cal.

    • Total Fat: 31g
    • Saturated Fat: 14g
    • Cholesterol: 126mg
    • Sodium: 870mg
    • Total Carbohydrate: 7g
    • Dietary Fiber: 2g
    • Total Sugars: 1g
    • Protein: 28g
    • Vitamin C: 5mg
    • Calcium: 32mg
    • Iron: 1mg
    • Potassium: 112mg