• Gather ingredients: Prepare all the ingredients before you start cooking.
  
• Preheat the Oven: Preheat your oven to 275°F (135°C).
  

Prepare the Steaks

• Remove the filet mignon from the refrigerator 30 minutes before cooking to allow it to come to room temperature.
• Pat the steaks dry with a paper towel, rub them with cooking oil, and season generously with salt and pepper on all sides.
  
• Roast in the oven for 50 minutes or until the internal temperature reaches 120°F (49°C) for medium-rare to medium. Use a meat thermometer for accuracy.
  

Sear the Steaks

• Once the steaks are done roasting, heat a cast-iron skillet over high heat until it’s smoking hot.
  
• Sear the steaks for 1-2 minutes on each side, including the edges, to develop a rich, golden-brown crust.
  

Add Aromatics

• Reduce the heat to medium and add butter, rosemary, and thyme to the skillet.
  
• Tilt the skillet slightly and use a spoon to baste the steaks with the melted butter and aromatics for about 30 seconds. This enhances the flavor and ensures a juicy steak.
  

Rest the Steaks

• Transfer the steaks to a plate and let them rest for 5-10 minutes. This step allows the juices to redistribute, ensuring every bite is tender and flavorful.
  

Prepare Fries

• While the steaks rest, cook your French fries according to package instructions or your preferred method for homemade fries (https://delishdoers.com/homemade-duck-fat-fries/)
  

Serve and Enjoy

• Plate the filet mignon steaks alongside the crispy fries. Optionally, garnish with a sprig of rosemary or thyme for presentation.
  
• Serve immediately and enjoy this restaurant-quality meal in the comfort of your own home.