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Fillet Steak with Mushroom Sauce Recipe

Fillet Steak with Mushroom Sauce Recipe


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4.8 from 35 reviews

  • Total Time: 45 minutes
  • Yield: 4 1x

Description

Succulent fillet steak meets silky mushroom sauce in this classic French-inspired dish. Rich, umami-packed sauce perfectly complements tender beef, creating a restaurant-quality meal you’ll savor down to the last delicious bite.


Ingredients

Scale

Main Ingredients:

  • 46 (6 ounces/170 grams each) filets mignon steaks, about 1.5 inches thick, at room temperature
  • 1 pound/450 grams baby brown mushrooms, cleaned
  • 1 small yellow onion, finely diced

Liquid and Seasoning Ingredients:

  • 1 cup low sodium beef broth
  • ½ cup almond milk or 2% milk
  • 1 tablespoon balsamic vinegar
  • 2 tablespoons olive oil, divided
  • 1 tablespoon fresh thyme, chopped

Additional Ingredients:

  • 24 medium garlic cloves, minced
  • 1 tablespoon cornstarch or flour
  • Kosher salt and pepper, to taste

Instructions

  1. Thoroughly dry the filet steaks using paper towels, then generously season both surfaces with salt and cracked black pepper to enhance flavor profiles.
  2. Select a robust skillet and warm it over medium-high temperature, introducing a thin layer of oil to prevent sticking.
  3. Carefully position the seasoned steaks into the heated pan, ensuring adequate spacing between each piece to promote even caramelization.
  4. Allow the meat to develop a rich golden-brown crust without disturbance, cooking approximately 3-4 minutes per side for a perfect medium-rare doneness.
  5. Transfer the cooked steaks to a warmed platter, tenting loosely with aluminum foil to retain heat and moisture.
  6. In the same skillet, introduce finely chopped onions and sauté until translucent, releasing their natural sweetness.
  7. Incorporate sliced mushrooms and minced garlic, stirring continuously to prevent burning and develop deep, complex flavors.
  8. Deglaze the pan with rich beef broth, adding fresh thyme leaves to infuse aromatic herbal notes.
  9. Reduce the liquid by half, concentrating the sauce’s intensity and creating a robust foundation.
  10. Create a smooth slurry by whisking almond milk with cornstarch until completely integrated.
  11. Gently incorporate the cornstarch mixture into the simmering sauce, stirring constantly to achieve a silky, luxurious texture.
  12. Finish the sauce with a splash of balsamic vinegar, adding a subtle tangy complexity.
  13. Reintroduce the steaks to the pan, gently coating them with the luscious mushroom sauce.
  14. Garnish with delicate sprigs of fresh thyme and serve immediately to preserve the dish’s optimal temperature and texture.

Notes

  • Perfectly seared fillet steak requires patting the meat dry to ensure a beautiful golden-brown crust and maximum flavor development.
  • Cooking steaks with ample space between them prevents steaming and promotes even caramelization for a restaurant-quality result.
  • Medium-rare doneness typically takes 2-4 minutes per side, but adjust cooking time based on steak thickness and personal preference.
  • Resting the steak after cooking allows juices to redistribute, ensuring a tender and succulent bite with each mouthful.
  • Creating a quick mushroom sauce in the same pan captures all the delicious browned bits from the steak, maximizing flavor complexity.
  • Cornstarch acts as a natural thickener, giving the sauce a silky texture without using heavy cream or traditional flour-based roux.
  • Prep Time: 15 minutes
  • Cook Time: 30 minutes
  • Category: Dinner
  • Method: Sautéing
  • Cuisine: French

Nutrition

  • Serving Size: 4
  • Calories: 450
  • Sugar: 3 g
  • Sodium: 300 mg
  • Fat: 25 g
  • Saturated Fat: 7 g
  • Unsaturated Fat: 15 g
  • Trans Fat: 0 g
  • Carbohydrates: 10 g
  • Fiber: 2 g
  • Protein: 40 g
  • Cholesterol: 100 mg