Preheating the cast iron skillet until it smokes ensures a beautiful sear on filet mignon. Learning how to cook filet mignon cast iron skillet style is one of the best ways to get a steakhouse-quality result at home. This method locks in juices and creates a golden-brown crust that is hard to beat.
Filet mignon is a tender cut that can dry out fast if you are not careful. A cast iron skillet gives you even heat and a perfect sear. In this guide, you will get step-by-step instructions, tips, and a few tricks to nail it every time.
Why Use A Cast Iron Skillet For Filet Mignon
Cast iron holds heat better than any other pan. It stays hot even when you add a cold steak. This is key for a good sear. Non-stick pans just can’t do the same job.
The heavy material also gives you a consistent cooking surface. You won’t get hot spots that burn one side while the other stays raw. Plus, you can put the whole skillet in the oven to finish cooking.
Another big plus is the flavor. The pan gets seasoned over time, adding a subtle depth to the steak. It is also cheap and lasts forever if you take care of it.
How To Cook Filet Mignon Cast Iron Skillet
This is the main section where you learn the exact process. Follow these steps closely for the best results.
Step 1: Choose The Right Filet Mignon
Look for steaks that are at least 1.5 inches thick. Thinner cuts cook too fast and are hard to sear without overcooking. Aim for 2 inches if you can find them.
Check the marbling. Filet mignon is lean, but some have small streaks of fat. More marbling means more flavor. Also, look for a bright red color and firm texture.
If the steak is vacuum-sealed, take it out of the package 30 minutes before cooking. This helps it come to room temperature.
Step 2: Season The Steak Properly
Keep it simple. Filet mignon has a delicate flavor that does not need heavy seasoning. Use coarse kosher salt and fresh ground black pepper.
Season both sides generously. Let the steak sit for 15 to 20 minutes after seasoning. This draws out moisture and helps the salt penetrate the meat.
Do not add oil to the steak. You will add it to the pan later. Some people add garlic powder or thyme, but that is optional.
Step 3: Preheat The Cast Iron Skillet
Place your skillet on the stove over medium-high heat. Let it heat for 5 to 7 minutes. You want it smoking hot before you add the steak.
Test the heat by flicking a drop of water on the pan. If it sizzles and evaporates instantly, you are ready. If it just sits there, wait longer.
Do not rush this step. A cold pan will not sear the steak. It will just cook it slowly and make it tough.
Step 4: Add Oil And Sear The Steak
Use a high-smoke-point oil like avocado, canola, or grapeseed. Olive oil burns too fast. Add a tablespoon of oil to the hot skillet and swirl it around.
Carefully place the steak in the pan. It should sizzle loudly. If it does not, the pan is not hot enough. Press down gently with a spatula for even contact.
Sear for 3 to 4 minutes on the first side. Do not move the steak. Let it form a crust. Flip it with tongs and sear the other side for another 3 minutes.
Step 5: Add Butter And Aromatics
After flipping, add 2 tablespoons of butter to the pan. Throw in a few sprigs of fresh thyme or rosemary and a crushed garlic clove. This adds flavor.
Tilt the pan slightly and use a spoon to baste the steak with the melted butter. Do this for about 1 minute. It helps the crust get even better.
Be careful not to burn the butter. If it starts turning dark brown, reduce the heat a little.
Step 6: Finish In The Oven
Preheat your oven to 400°F (200°C) before you start cooking. Once the steak is seared on both sides, transfer the skillet to the oven.
Cook for 4 to 6 minutes for medium-rare, depending on thickness. Use a meat thermometer to check. For medium-rare, aim for 130°F to 135°F.
If you want medium, cook to 140°F to 145°F. Remember, the steak will continue cooking a few degrees after you take it out.
Step 7: Rest The Steak
Take the skillet out of the oven. Remove the steak and place it on a cutting board. Let it rest for 5 to 7 minutes.
Resting is not optional. It lets the juices redistribute inside the meat. If you cut too soon, all the juice will run out and the steak will be dry.
Cover it loosely with foil to keep it warm. Do not wrap it tight or the crust will get soggy.
Step 8: Slice And Serve
Slice the steak against the grain. This makes it easier to chew. Filet mignon is already tender, but slicing correctly helps even more.
Serve immediately. You can drizzle the pan juices over the top. Pair it with simple sides like roasted vegetables or mashed potatoes.
Do not forget to season with a pinch of flaky salt right before serving. It adds a nice crunch.
Tips For Perfect Filet Mignon Every Time
Here are some extra pointers to help you avoid common mistakes.
Use A Meat Thermometer
Guessing doneness by touch is risky. A thermometer is cheap and accurate. Insert it into the thickest part of the steak for the best reading.
If you do not have one, use the finger test. Touch your thumb to your index finger and feel the muscle at the base of your thumb. That is what medium-rare feels like.
But really, just get a thermometer. It takes the guesswork out.
Pat The Steak Dry
Before seasoning, pat the steak dry with paper towels. Moisture on the surface prevents a good sear. Dry meat browns better.
Do this even if the steak looks dry. You will be surprised how much moisture comes off.
Do Not Overcrowd The Pan
Cook one or two steaks at a time. If you put too many in, the pan temperature drops. Then you get steamed meat instead of seared.
If you are cooking for a crowd, use two skillets or cook in batches. Keep the cooked steaks warm in a low oven.
Let The Steak Come To Room Temperature
Take the steak out of the fridge 30 to 40 minutes before cooking. A cold steak lowers the pan temperature and cooks unevenly.
Do not leave it out longer than an hour for safety reasons. Room temperature is fine, not hot.
Common Mistakes To Avoid
Even experienced cooks mess up sometimes. Here are the biggest pitfalls.
Using Too Much Oil
A thin layer is enough. Too much oil makes the steak greasy and prevents a good crust. It can also cause flare-ups.
Just a tablespoon or two is plenty. You can always add more butter later for basting.
Flipping Too Early
Let the steak cook undisturbed for the full time on each side. If you flip too soon, the crust will not form. The steak will stick to the pan.
If it sticks, it is not ready to flip. Wait another 30 seconds and try again.
Skipping The Rest
This is the most common mistake. People are hungry and want to eat right away. But cutting into a hot steak releases all the juices.
Resting for 5 minutes makes a huge difference. Your patience will be rewarded.
What To Serve With Filet Mignon
Filet mignon is rich and tender. It pairs well with simple sides that do not overpower it.
- Roasted asparagus or green beans
- Garlic mashed potatoes
- A simple arugula salad with lemon vinaigrette
- Sauteed mushrooms in butter
- Crusty bread to soak up the pan juices
You can also serve it with a red wine reduction sauce. Just deglaze the pan with a splash of red wine after cooking and reduce it.
Frequently Asked Questions
Can I Cook Filet Mignon In A Cast Iron Skillet Without An Oven?
Yes, you can cook it entirely on the stovetop. Just sear it on both sides and then reduce the heat to medium-low. Cook for a few more minutes per side until it reaches your desired doneness. The oven method is more even, but stovetop works fine.
What Is The Best Oil For Searing Filet Mignon In Cast Iron?
Avocado oil is the best because it has a very high smoke point. Canola and grapeseed oil are also good. Avoid olive oil or butter for the initial sear because they burn easily.
How Do I Know When Filet Mignon Is Done Without A Thermometer?
Use the finger test. Touch your thumb to your index finger and feel the muscle at the base of your thumb. That firmness is medium-rare. For medium, touch your thumb to your middle finger. It takes practice, but it works.
Should I Oil The Steak Or The Pan?
Oil the pan, not the steak. Adding oil directly to the hot skillet helps create a non-stick surface. Oiling the steak can cause flare-ups and uneven browning.
Can I Use A Cast Iron Skillet On An Induction Cooktop For Filet Mignon?
Yes, cast iron works great on induction cooktops. Just make sure the bottom of the skillet is flat and smooth. Heat it on medium-high for a few minutes before adding oil.
Final Thoughts On Cooking Filet Mignon In Cast Iron
Cooking filet mignon in a cast iron skillet is simple once you know the steps. The key is high heat, good seasoning, and proper resting. Do not overcomplicate it.
With a little practice, you will be able to make a steak that rivals any restaurant. The crust will be crispy, the inside tender, and the flavor rich. Just remember to preheat your pan until it smokes.
Now you know how to cook filet mignon cast iron skillet style. Grab a thick cut, heat up your pan, and get cooking. Your dinner guests will thank you.