How Long To Bake Filet Mignon In Oven – Easy Baking Steps

If you’re looking for a simple way to cook a tender steak at home, learning how long to bake filet mignon in oven is a great skill. This method is reliable and can give you perfect results every time with a little know-how.

Filet mignon is known for its tenderness. Baking it in the oven, often after searing, is a fantastic technique. It helps cook the steak evenly to your preferred doneness. This guide will walk you through the entire process, from choosing your steak to serving it.

How Long To Bake Filet Mignon In Oven

The core answer depends on how you like your steak and how thick it is. For a standard 1.5-inch thick filet mignon seared first in a pan, a general guideline is:

  • Rare: 4-6 minutes in a 400°F (205°C) oven.
  • Medium Rare: 6-8 minutes (this is the recommended doneness for best flavor and texture).
  • Medium: 8-10 minutes.
  • Medium Well: 10-12 minutes.

Remember, these times start after you’ve seared the steak. Always use a meat thermometer for accuracy. The final temperature is more important than the clock.

What You’ll Need for Oven-Baked Filet Mignon

Gathering your tools and ingredients first makes everything smoother. Here’s your checklist.

  • Filet mignon steaks, 1.5 to 2 inches thick.
  • High-heat cooking oil (avocado, grapeseed, or canola).
  • Kosher salt and freshly ground black pepper.
  • Butter, garlic cloves, and fresh herbs like thyme or rosemary (optional, for basting).
  • An oven-safe skillet (cast iron or stainless steel is perfect).
  • Tongs.
  • Instant-read meat thermometer (this is essential).
  • Aluminum foil (for resting).

Choosing the Right Filet Mignon

Start with a good steak. Look for filets that are bright red in color with a fine texture. A thickness of at least 1.5 inches is ideal for oven baking. Thinner steaks will cook to fast in the oven and are harder to get right. Also, choose steaks with good marbling if possible. While filet is lean, a little fat adds flavor.

The Importance of Thickness

Thickness is the most important factor for baking time. A 1-inch steak and a 2-inch steak need very different times in the oven. Thicker cuts allow for a beautiful sear on the outside while the inside cooks gently and evenly. They are also more forgiving. If you can, ask your butcher for a thick cut.

Step-by-Step: Baking Filet Mignon in the Oven

Follow these steps for a perfectly cooked filet mignon using the oven method.

Step 1: Bring the Steak to Room Temperature

Take the steaks out of the refrigerator about 30-45 minutes before cooking. This helps them cook more evenly. If you put a cold steak in a hot pan, the outside can overcook before the inside is done.

Step 2: Preheat and Pat Dry

Preheat your oven to 400°F (205°C). While it heats, pat the steaks completely dry with paper towels. Moisture on the surface is the enemy of a good sear. It creates steam instead of a crust.

Step 3: Season Generously

Season both sides of the steak liberally with kosher salt and black pepper right before cooking. Don’t be shy with the salt. You can also add other seasonings like garlic powder at this stage if you like.

Step 4: Sear the Steak on the Stovetop

Heat your oven-safe skillet over medium-high heat until it’s very hot. Add a tablespoon of high-heat oil. Carefully place the steaks in the pan. Sear without moving them for 2-3 minutes per side, until a deep brown crust forms. Also sear the edges for about 30 seconds each using your tongs.

Step 5: Add Aromatics and Transfer to Oven

If you’re using them, add a couple tablespoons of butter, garlic cloves, and herbs to the hot pan. Tilt the pan and use a spoon to baste the steaks with the melted butter for about 30 seconds. Then, immediately transfer the entire skillet to the preheated oven.

Step 6: Bake to Your Desired Doneness

This is where your thermometer is key. Bake the filet mignon until it reaches your target internal temperature. Check it a minute or two before you think it’s ready. The temperatures below are the final temperatures you want after resting.

  • Rare: 120-125°F (49-52°C) – Remove from oven at 115°F.
  • Medium Rare: 130-135°F (54-57°C) – Remove from oven at 125°F.
  • Medium: 140-145°F (60-63°C) – Remove from oven at 135°F.
  • Medium Well: 150-155°F (65-68°C) – Remove from oven at 145°F.

Step 7: Rest the Steak

This step is non-negotiable. Transfer the steaks to a plate or cutting board and loosely tent them with foil. Let them rest for at least 5-10 minutes. This allows the juices, which have been driven to the center by the heat, to redistribute throughout the steak. If you cut it to soon, those juices will end up on your plate.

Why the Sear-First Method Works Best

Searing first, then baking, is called the “reverse sear” by some chefs, though traditional methods often use this order. It creates a flavorful crust through the Maillard reaction. Then, the gentle, even heat of the oven finishes the cooking without burning the outside. It gives you maximum control over the final result.

Using a Meat Thermometer Correctly

Guessing doneness by feel or time alone is unreliable. An instant-read thermometer takes the guesswork out. Insert the probe horizontally into the side of the steak, pushing it into the thickest part of the center. Avoid touching the bone or the pan. The temperature will rise 5-10 degrees during resting, so pull it out just before it hits your final target.

Common Mistakes to Avoid

Even small errors can affect your steak. Here’s what to watch out for.

  • Not Drying the Steak: A wet surface prevents browning.
  • Using a Cold Pan: The steak will stew, not sear.
  • Moving the Steak Too Much: Let it develop a crust before flipping.
  • Skipping the Rest: This leads to a dry, less juicy steak.
  • Overcrowding the Pan: Cook in batches if needed so the pan stays hot.

Delicious Variations and Toppings

A simple salt and pepper filet is classic, but you can easily add more flavor. Try a compound butter with herbs and garlic melting on top. A red wine pan sauce made in the same skillet after removing the steak is another excellent option. You can also crust the steak with cracked peppercorns before searing for a steak au poivre style.

Making a Simple Pan Sauce

After removing the steaks to rest, place the skillet back on the stove over medium heat. Add a splash of red wine or beef broth to deglaze the pan, scraping up the browned bits. Let it reduce by half, then whisk in a couple tablespoons of cold butter until the sauce is glossy. Season with salt and pepper and pour over your steak.

Serving Suggestions

Filet mignon pairs well with many sides. Consider classic steakhouse options like creamy mashed potatoes, roasted asparagus, or a crisp green salad. Sauteed mushrooms or grilled vegetables also work wonderfully. The goal is to choose sides that complement the rich, savory flavor of the steak without overwhelming it.

Storing and Reheating Leftovers

Leftover filet mignon is rare, but it happens. Store it in an airtight container in the refrigerator for up to 3 days. To reheat, avoid the microwave, which will make it tough. Instead, gently warm it in a low oven (275°F) until just heated through, or slice it thin and add it to a salad cold.

FAQ Section

How long does it take to cook filet mignon in the oven at 400?

After searing, it typically takes 6-10 minutes in a 400°F oven for a 1.5-inch steak to reach medium-rare to medium. Always use a thermometer to be sure.

Can you cook filet mignon in the oven without searing first?

You can, but you’ll miss out on the flavorful crust. For best results, sear first. If you must skip searing, you may need to bake it a few minutes longer, but the texture will be different.

What temperature should filet mignon be cooked to in the oven?

The final temperature after resting should be 130-135°F for medium rare. Remember to pull it from the oven when it’s 5-10 degrees below that, as it will continue too cook while resting.

How do you keep filet mignon from drying out in the oven?

Three keys prevent dryness: don’t overcook it (use a thermometer), let it come to room temperature before cooking, and always rest the steak after it comes out of the oven. Basting with butter during cooking also helps.

Is it better to bake or pan fry filet mignon?

For thicker cuts (over 1.5 inches), the sear-then-bake method is superior for even cooking. For thinner cuts, pan-frying alone is sufficient. Baking helps control the internal temperature of a thick steak without burning the outside.

Should you cover filet mignon when baking?

No, you should not cover it during baking. Covering it would create steam and soften the beautiful crust you worked hard to create during searing. Only cover it with foil after cooking, during the rest period.

Baking filet mignon in the oven is a straightforward technique that yields impressive results. The combination of a hot sear and gentle oven heat ensures a steak that’s caramelized on the outside and tender inside. By focusing on the thickness of your steak, using a reliable meat thermometer, and allowing for proper resting time, you can consistently cook a filet mignon that rivals any restaurant. The next time you have a special dinner planned, you can feel confident preparing this classic dish in your own kitchen.