Prepare the Mushroom Sauce
Melt 1 oz / 28. 4 g of butter in a medium skillet over medium heat.
Add the minced garlic and dried thyme, and sauté for 1 minute until fragrant.
Add the sliced mushrooms, season with salt and pepper, and cook for about 7 minutes, stirring occasionally, until beautifully browned and tender.
Reduce the heat to low.
Stir in the cream cheese until it's completely melted and smooth.
Slowly whisk in the heavy cream. Allow the sauce to simmer gently for 3-5 minutes to thicken, but do not let it boil.
Keep warm on the lowest setting.
Cook the Steaks
Pat the beef filets completely dry with a paper towel and season all sides generously with salt and freshly ground black pepper.
Melt the remaining 1 oz / 28. 4 g of butter in a large cast-iron skillet over medium-high heat.
Once the butter is sizzling, carefully place the filets in the skillet.
Sear for 3-5 minutes per side for a perfect medium-rare, adjusting for thickness and your preferred doneness.
Transfer the steaks to a cutting board and let them rest for at least 5 minutes. This crucial step allows the juices to redistribute for a tender, flavorful bite.
Serve
Plate the rested beef filets and generously spoon the warm, creamy mushroom sauce over the top.
Serve immediately and enjoy!
After cooking the mushrooms, deglaze the pan with a splash of dry white wine or brandy before adding the cream cheese for an extra layer of flavor.