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Beef Filets With Cognac Mushroom Onion Sauce Recipe

Indulge in the rich, savory perfection of pan-seared beef filets, elevated by a luxurious cognac mushroom onion sauce. This recipe, crafted from a cherished family memory, delivers restaurant-quality results in your own kitchen. The tender filets, perfectly browned and cooked to your desired doneness, are nestled atop a decadent bed of sautéed onions, mushrooms, and shallots, all infused with the aromatic warmth of cognac. Get ready to impress your family and friends with this unforgettable culinary masterpiece!

Prep Time 20 mins
Cook Time 86 mins
Calories 839.6 kcal
Protein 75g
Rating 4.5 (2 Reviews)
Beef Filets With Cognac Mushroom Onion Sauce

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Recipe Author

Chef Forktionary, author of this recipe

Passionate home cook & Forktionary contributor.

Ingredients for Beef Filets With Cognac Mushroom Onion Sauce

  • Beef Tenderloin Steaks
  • 1/2 teaspoon salt (or 1/4 teaspoon kosher salt)
  • Coarse Black Pepper
  • Canola Oil
  • 2 tablespoons butter
  • Yellow Onion
  • Red Onion
  • Green Onion
  • 2 shallots, minced
  • Button Mushrooms
  • Garlic Cloves
  • 1/4 cup cognac
  • Low Sodium Beef Broth
  • Fresh Ground Black Pepper
  • Fresh Parsley

How to Make Beef Filets With Cognac Mushroom Onion Sauce

  1. Preheat oven to 400°F (200°C).
  2. Season beef filets generously with 1/2 teaspoon salt (or 1/4 teaspoon kosher salt) and 1/2 teaspoon black pepper.
  3. Heat 1 tablespoon of olive oil in an oven-safe skillet (cast iron is ideal) over medium-high heat. Sear filets for 3 minutes per side, until nicely browned.
  4. Remove filets from skillet and set aside, reserving pan drippings.
  5. Add 2 tablespoons of butter to the skillet and melt over medium-high heat.
  6. Add 1 medium yellow onion, thinly sliced, and 1/2 medium red onion, thinly sliced. Sauté for 5 minutes until softened.
  7. Add 2 green onions, thinly sliced; 2 shallots, minced; 8 ounces cremini mushrooms, sliced; and 2 cloves garlic, minced.
  8. Continue sautéing for 15 minutes, or until vegetables are lightly browned and softened.
  9. Pour in 1/4 cup cognac and 1/2 cup beef broth. Stir constantly until the liquid reduces and slightly thickens (about 5 minutes).
  10. Return beef filets to the skillet, placing them on top of the onion mixture.
  11. Cover the skillet tightly with aluminum foil.
  12. Transfer the skillet to the preheated oven and bake for 15-20 minutes, or until a meat thermometer inserted into the thickest part of the filet registers 135°F (57°C) for medium-rare (adjust cooking time for your desired doneness).
  13. Remove skillet from oven. Remove filets from the skillet and loosely cover them to rest for 10 minutes.
  14. Return the skillet with the onion mixture to the stovetop over medium heat.
  15. Cook, stirring constantly, for 5 minutes, or until the sauce has reduced and thickened to your desired consistency.
  16. Season the sauce with salt and pepper to taste.
  17. Serve the beef filets immediately, spooning the delicious cognac mushroom onion sauce generously over the top.

Chef's Tip for Extra Flavor

Elevate your dish with simple flavor boosters! A final flourish of freshly chopped herbs can add incredible brightness, while a squeeze of lemon or lime juice right before serving can awaken all the flavors. Don't underestimate a sprinkle of quality finishing salt or a drizzle of good olive oil to make your creation shine.

Nutrition Information (Approximate per serving)

Sodium

32 g

Sugar

25g

Fat

122g

Carbs

8g

Recipe Categories (Choose a category and find related recipes!)

Time To Make Course Main Ingredient Cuisine Preparation Occasion North American For 1 Or 2 Main Dish Beef Vegetables American Oven Easy Diabetic Dinner Party Broil Stove Top Dietary Low Sodium Low Calorie Comfort Food Low Carb Mushrooms Northeastern United States Low In Something Meat Steaks Onions Taste Mood Savory Equipment Number Of Servings Presentation Served Hot 4 Hours Or Less