SAUCE FOR FILET MIGNON ROAST RECIPES

Steps:

• Melt butter in a skillet over medium heat. Add the onion, garlic and thyme. Cook, stirring constantly, until onion is tender. Stir in the beef broth, scraping any onion bits from the bottom of the pan, then stir in the port wine. Bring to a boil, and cook until the mixture has reduced to about 1/2 cup. Set aside. This may also be made ahead of time, and reheated.
• Preheat the oven to 350 degrees F (175 degrees C). Heat oil in a cast-iron or other oven-safe skillet over high heat. Sear steaks quickly on both sides until brown, then place the whole pan into the oven.
• Roast steaks in the oven for about 15 minutes for medium rare - with an internal temperature of 145 degrees F (63 degrees C). You may adjust this time to allow the steaks to finish just below your desired degree of doneness if medium is not what you prefer. Remove from the oven, and place on a baking sheet. Stir together the panko crumbs and blue cheese. Top each steak with a layer of this mixture.
• Preheat the oven's broiler. Place steaks under the preheated broiler until the cheese topping is browned and bubbly. 3 to 4 minutes. Remove from the oven, and let stand for at least 15 minutes before serving. Serve with warm port wine sauce.

Steps:

• Preheat grill to medium-high heat.
• Generously season the steaks with salt and pepper and drizzle with the 3 tablespoons of olive oil. Grill to desired doneness, about 5 minutes per side for medium-rare. Transfer the steaks to a cutting board. Tent with foil and let stand 10 minutes.
• Meanwhile, melt 2 tablespoons of butter in a heavy large saucepan over medium-high heat. Add the onions and saute until tender, about 5 minutes. Season with salt. Add the garlic and oregano and saute until fragrant, about 30 seconds. Stir in the tomato paste and cook for 2 minutes, stirring constantly. Whisk in the wine. Simmer until the sauce reduces by half, stirring occasionally, about 10 minutes. Remove the skillet from the heat. Strain the sauce into a small bowl, pressing on the solids to extract as much liquid as possible. Discard the solids in the strainer and return the sauce to the saucepan and bring back to a slow simmer. Cut the remaining 4 tablespoons of butter into small 1/2-inch chunks and whisk in the sauce a little at a time. Season the sauce, to taste, with salt and pepper.
• Place filets on each of 6 dinner plates. Drizzle the sauce over the filets and serve.