Filet mignon is one of the most prized cuts of meat in French cuisine, renowned for its tenderness and delicate taste.
When cooked properly in the oven, pork tenderloin guarantees a top-notch taste experience.
However, achieving perfect cooking requires following some specific rules, particularly regarding cooking time.
In this article, we will explore how to cook a filet mignon in the oven so that it is tender and juicy.
The cooking time for a filet mignon in a fan-assisted oven is generally 25 to 30 minutes at 160°C, depending on the thickness of the fillet and the desired degree of doneness.
Cooking time for pork tenderloin depends on weight 🍗
To avoid making a mistake, here are some practical guidelines for cooking your pork tenderloin in the oven.
Whether you have a 500g, 600g or even 1kg, follow these instructions and you will get tender and well-cooked meat, effortlessly.
For a 600g pork tenderloin in a conventional oven at 180°C, cook it for 25 to 30 minutes.
For a 1 kg pork tenderloin in a conventional oven at 180°C, cook it for 35 to 40 minutes.
| Weight of the filet mignon | Cooking type | Oven temperature | Cooking time | Ideal internal temperature |
|---|---|---|---|---|
| 600 g | Traditional oven | 180°C | 25 to 30 minutes | 63°C |
| 600 g | Fan oven | 160°C | 20 to 25 minutes | 63°C |
| 1 kg | Traditional oven | 180°C | 35 to 40 minutes | 63°C |
| 1 kg | Fan oven | 160°C | 30 to 35 minutes | 63°C |
| 500 g | Traditional oven | 180°C | 20 to 25 minutes | 63°C |
| 500 g | Fan oven | 160°C | 15 to 20 minutes | 63°C |

Preparation before cooking
Preheating the oven
Preheat your oven to a temperature between 180°C and 200°C, depending on your preferences and recipes. Preheating ensures even heat distribution, perfect for achieving consistent cooking.
By starting with a very hot oven, you allow the meat to sear quickly on the surface, thus trapping the natural juices inside.
This technique will make your filet mignon particularly tender and juicy.
Seasonings and marinades
A simple mixture of salt, pepper, garlic and aromatic herbs can be enough to enhance the natural taste of the meat.
You can also choose to add spices or marinade for extra flavor.
For those who prefer a marinade, it is advisable to let the meat rest in it for about two hours.
The ingredients commonly used are wine, olive oil, garlic, and fresh herbs. This preparation allows the flavors to penetrate deeply into the tenderloin, making every bite irresistible.

The different cooking methods
Here are three popular methods for achieving ideal cooking results, depending on the specific characteristics of the food :
High-temperature cooking
This method involves cooking the pork tenderloin at a high temperature (around 200°C) for a short period. It's particularly appreciated for achieving a golden, crispy exteriorwhile keeping the interior tender. Here's how to do it:
- Preheat the oven to 200°C.
- Place the seasoned filet mignon on a baking sheet.
- Place in the oven and bake for approximately 20 to 25 minutes, depending on the thickness of the piece.
Remember to check the internal temperature with a meat thermometer. For a pork tenderloin, it should reach approximately 63°C for medium-rare.
Low-temperature cooking
Low-temperature cooking is ideal for those seeking gentle and even cooking. This technique preserves all the flavor and nutritional qualities of the meat. Here are the steps to follow:
- Preheat the oven to 80°C.
- Place the filet mignon in an ovenproof dish.
- Cook for approximately 1.5 to 2 hours, depending on the thickness and size of the piece.
Once again, a meat thermometer will be useful to determine the internal temperature, which should also be around 63°C.
Combination cooking
Here's a method that combines the advantages of the two previous ones, offering a quick sear meat tender and juicy perfectly
- Sear the filet mignon in a hot pan with a little olive oil, until it is well browned on all sides.
- Preheat the oven to 140°C.
- Place the tenderloin on a baking and bake for approximately 40 to 50 minutes.
As with other techniques, be sure to check the internal temperature to ensure you do not overcook the meat.

Additional tips for successful cooking
Resting after cooking
After cooking, let the tenderloin rest for about 10 to 15 minutes before slicing. This resting time allows the juices to redistribute evenly throughout the meat, ensuring a tender texture and rich flavor.
The use of a meat thermometer
One of the most useful tools in this culinary adventure is undoubtedly a meat thermometer. It eliminates any guesswork regarding the degree of doneness, which is particularly helpful for avoiding serving meat that is overcooked or undercooked. Always aim for an internal temperature of around 63°C for optimal results.
Why not try these tips at your next cooking party? After all, mastering the art of cooking a filet mignon in the oven is a valuable skill that will surely delight your guests!
Variations and accompaniments
To add variety, don't hesitate to experiment with different marinades or sauces. Teriyaki, honey mustard, or even a creamy pepper sauce can transform your dish.
A pork tenderloin goes well with roasted vegetables, sautéed potatoes or a creamy mashed potato.
A light and tangy sauce could also provide an interesting contrast to the richness of the meat.

Chef's tips
Want to take your culinary experience even further? Try these little chef's touches:
- Dried citrus peel: Add fresh zest to your seasoning for a slightly tangy note.
- Herb crust: Coat the tenderloin with a mixture of freshly chopped herbs before cooking for an explosion of flavors.
- Caramelization: Before baking, lightly brush the meat with honey or maple syrup for a caramelized and sweet layer.
These small additions can really elevate your filet mignon to the next level and impress your guests even more.
Step-by-step technique for beginners
If you're new to cooking, here's a simple and foolproof recipe to get you started:
- Preheat your oven to 190°C.
- generously filet mignon with salt, pepper and your favorite herbs.
- Sear the meat in a hot pan for about 2 minutes on each side to get a nice color.
- Transfer the tenderloin to an ovenproof dish and let it cook for 25 to 30 minutes.
- Check the internal temperature with a thermometer; it should be around 63°C.
- Let the meat rest for 10 minutes before slicing and serving.

