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Two steaks on a platter covered with a creamy mushroom sauce

Filet Mignon with Boursin Mushroom Sauce

Tender filet mignon steaks smothered in a creamy, rich mushroom sauce with hints of sweet tanginess and garlic.
5 from 2 votes
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Course: Main Meal - Beef
Cuisine: America
Keyword: main meal, steak dinner
Prep Time: 5 minutes
Cook Time: 25 minutes
Total Time: 30 minutes
Servings: 2
Author: Laura Franco

Ingredients 

  • 2 6-8 oz. filet mignon steaks
  • 1 pint mushrooms cleaned and sliced
  • 1/2 cup heavy cream
  • 2 tbsp butter
  • 1 tbsp extra virgin olive oil
  • 1 tbsp salt
  • 1 tbsp black pepper
  • 2 tbsp Boursin cheese
  • 2 tbsp fresh chopped parsley

Instructions

  • Take steaks out of refrigerator 20-30 minutes prior to cooking. Salt and pepper them liberally and let them sit at room temperature.
  • Preheat skillet on medium-high heat
  • Add the extra virgin olive oil
  • Sear the steaks until they reach an internal temperature of 123°. My steaks took about 3-4 minutes on each side. Remove the steaks from the skillet, cover them with foil, and let them rest at room temperature. (The steaks will continue to cook internally while they rest.)
  • Melt the butter in the same skillet.
  • Add the mushrooms and cook until they start to caramelize and turn brown. Mine cooked for 5 minutes on medium heat.
  • Add the heavy cream.
  • Stir in the Boursin cheese until it melts.
  • Turn the heat to medium and cook for 3-4 minutes.
  • Add the steaks back into the skilled.
  • Add the fresh chopped parsley and cook for another 4-5 minutes.

Notes

  • I recommend taking the raw steaks out of the refrigerator about 30-40 minutes before you are going to cook them. Liberally salt and pepper them on both sides and let them sit on a plate on the countertop. Salt them slightly again on both sides before cooking.
  • I like to use heavy cream in my sauces, but I don't use a lot. I've seen many recipes that use over a cup of cream but I find that 1/2 cup is plenty for a creamy texture and a rich flavor. If I don't have heavy cream on hand I substitute it with half-n-half.
  • Bonus Recipe Idea: If you have leftover sauce save it because it makes a great dinner using ground beef or ground turkey. Simply add browned ground beef or turkey to the sauce, top it with cheese or mashed potatoes, bake it at 350° for 25 minutes and you will have a delicious left-over dinner.