When it comes to cooking a succulent and tender beef tenderloin, understanding the cooking time is crucial to ensure a perfectly cooked, mouthwatering steak. This cut of beef, also known as filet mignon, is prized for its tenderness and mild flavor, but it can become dry and tough if overcooked. In this guide, we'll delve into the intricacies of cooking time for a beef tenderloin, ensuring you serve a steak that's cooked to perfection every time.
Understanding Beef Tenderloin Cooking Times
The cooking time for a beef tenderloin can vary depending on several factors, including the thickness of the steak, the desired level of doneness, and your preferred cooking method. Here, we'll provide cooking times for both oven-roasting and pan-searing methods, using the USDA's recommended safe internal temperatures as a guide.
Oven-Roasting a Beef Tenderloin
Oven-roasting is a popular method for cooking a whole beef tenderloin or large steaks. This method allows for even cooking and is ideal for serving a large number of guests. To oven-roast a beef tenderloin, preheat your oven to 400°F (200°C). Season your steak generously with salt and pepper, and place it on a wire rack set over a baking sheet. Insert a meat thermometer into the thickest part of the steak and roast until it reaches your desired internal temperature.

| Desired Doneness | Internal Temperature (°F/°C) | Approximate Cooking Time (minutes) |
|---|---|---|
| Rare | 125°F (52°C) | 15-20 |
| Medium-Rare | 135°F (57°C) | 18-22 |
| Medium | 145°F (63°C) | 22-26 |
| Well-Done | 160°F (71°C) | 28-32 |
Once your steak has reached the desired internal temperature, remove it from the oven and let it rest for 10-15 minutes before slicing and serving. This allows the juices to redistribute throughout the steak, ensuring a moister and more flavorful final product.
Pan-Searing a Beef Tenderloin
Pan-searing is a quick and easy method for cooking individual beef tenderloin steaks. This method involves cooking the steak in a hot skillet on the stove, then finishing it in the oven if necessary. To pan-sear a beef tenderloin, heat a cast-iron or oven-safe skillet over high heat. Add a small amount of oil with a high smoke point, such as canola or grapeseed oil, and once hot, add your seasoned steak.
Sear the steak for 2-3 minutes on each side, or until a golden-brown crust forms. If your steak is thick and you're aiming for a higher level of doneness, transfer the skillet to a preheated 400°F (200°C) oven and roast until it reaches your desired internal temperature, following the cooking times provided in the previous table.

Tips for Perfectly Cooked Beef Tenderloin
- Bring the steak to room temperature: Before cooking, allow your beef tenderloin to sit at room temperature for 20-30 minutes. This helps the steak cook more evenly and ensures a juicier final product.
- Preheat your pan or oven: Ensure your cooking surface is hot before adding your steak. This helps create a beautiful sear and promotes even cooking.
- Use a meat thermometer: Invest in a reliable meat thermometer to ensure accuracy in determining the internal temperature of your beef tenderloin. This is the most reliable way to gauge doneness and prevent overcooking.
- Let it rest: After cooking, allow your beef tenderloin to rest for 10-15 minutes before slicing and serving. This allows the juices to redistribute throughout the steak, resulting in a more flavorful and moist final product.
By following these guidelines and tips, you'll be well on your way to cooking a perfectly tender and juicy beef tenderloin every time. Don't be afraid to experiment with different seasonings, marinades, and cooking methods to find what works best for you. Happy cooking!