Grilling filet mignon over high heat creates a smoky crust while keeping the interior juicy and pink. If you have been wondering how to cook filet on grill perfectly every time, you have come to the right place. This guide walks you through everything from selecting the right cut to resting the meat after it comes off the flames. No complicated techniques, just straight forward steps that work.
Filet mignon is one of the most tender cuts of beef. It comes from the tenderloin, which does very little work during the cow’s life. That means less connective tissue and a buttery texture. But tenderness also means less fat, so you need to be careful not to dry it out. Grilling solves this problem by searing the outside fast and leaving the inside perfectly pink.
Before you light the grill, let us talk about what you will need. A good set of tongs, a instant-read thermometer, and high heat are non-negotiable. You also want a clean grill grate so the steak does not stick. Trust me, a stuck steak is a sad steak.
How To Cook Filet On Grill
This section covers the entire process from start to finish. Follow these steps and you will have a restaurant-quality filet right in your backyard.
Choosing The Right Filet Mignon
Not all filets are created equal. Look for steaks that are at least 1.5 inches thick. Thinner cuts cook too fast and are hard to get a good crust without overcooking the inside. Aim for 8 to 10 ounces per steak if you can.
Check the marbling. Even though filet is lean, you still want some small white streaks of fat running through the meat. That fat adds flavor and moisture. Also, choose steaks that are bright red in color. Avoid any that look brown or grayish.
If you can, buy USDA Prime or Choice grade. Prime has more marbling and will taste better. But Choice is still very good if you handle it right.
Prepping The Steak Before Grilling
Take the filets out of the fridge about 30 to 45 minutes before you cook. Letting them come to room temperature helps them cook more evenly. A cold steak will burn on the outside before the center is done.
Pat the steaks dry with paper towels. Moisture is the enemy of a good sear. If the surface is wet, it will steam instead of brown. Dry meat equals better crust.
Season generously with kosher salt and fresh cracked black pepper. That is all you really need. Some people add garlic powder or thyme, but keep it simple. Salt draws out moisture, so season right before you put the steak on the grill, not hours ahead.
Setting Up The Grill For High Heat
You want a two-zone fire. One side of the grill should be screaming hot, around 450°F to 500°F. The other side should be cooler, around 300°F to 350°F. This gives you a place to sear and a place to finish cooking if needed.
For a gas grill, turn all burners to high for 10 minutes, then turn off one burner. For a charcoal grill, pile the coals on one side only. Leave the other side empty.
Clean the grates with a wire brush. Then oil them by dipping a folded paper towel in vegetable oil and using tongs to rub it on the grates. This prevents sticking.
Searing The Filet
Place the steaks on the hot side of the grill. Do not move them for 3 to 4 minutes. You want a deep brown crust, so let the heat do its job. If you try to flip too early, the steak will stick.
After 3 to 4 minutes, use your tongs to flip the steak. It should release easily. If it sticks, give it another 30 seconds. Sear the second side for another 3 to 4 minutes.
For a nice crust on the edges, use your tongs to hold the steak on its side for about 30 seconds per edge. This is called the “fat cap” sear, even though filet does not have much fat. It still adds flavor.
Finishing To The Right Temperature
After searing, move the steaks to the cooler side of the grill. Insert your instant-read thermometer into the thickest part of the steak. Here are the target temperatures for doneness:
- Rare: 120°F to 125°F
- Medium-rare: 130°F to 135°F
- Medium: 140°F to 145°F
- Medium-well: 150°F to 155°F
- Well-done: 160°F and above
For filet mignon, medium-rare is the gold standard. The meat is tender and juicy. If you cook it past medium, it gets dry and loses its charm.
Keep the lid closed while the steak finishes. Check the temperature every 2 minutes after the first 4 minutes. Filets cook fast, so do not walk away.
Resting The Steak
Once the steak hits your target temperature, take it off the grill immediately. Put it on a cutting board or a plate. Let it rest for 5 to 7 minutes. Do not skip this step.
During resting, the juices redistribute throughout the meat. If you cut into it right away, all those juices run out onto the plate, leaving you with a dry steak. Resting gives you a moist, flavorful bite every time.
Loosely tent the steak with foil if you want, but it is not necessary. Just let it sit undisturbed.
Slicing And Serving
After resting, slice the filet against the grain. This shortens the muscle fibers and makes each bite more tender. Filet is already tender, but slicing correctly still helps.
Serve immediately with your favorite sides. Grilled asparagus, roasted potatoes, or a simple salad all work well. A pat of butter on top of the hot steak adds richness.
Common Mistakes To Avoid
Even experienced cooks make errors when grilling filet. Here are the most common ones and how to avoid them.
Overcooking The Steak
Filet mignon is lean. Overcooking it turns it into a dry, tough piece of meat. Use a thermometer every time. Guessing leads to disappointment.
Remember that the steak continues to cook after you take it off the grill. The internal temperature will rise by about 5°F during resting. So pull it off when it is 5°F below your target.
Not Letting The Steak 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. Be patient. Five minutes is not that long.
Using Too Much Seasoning
Filet has a delicate flavor. Heavy spice rubs or marinades can overpower it. Stick to salt and pepper. If you want more flavor, add a compound butter after cooking.
Grilling Cold Steaks
Putting a cold steak on a hot grill causes uneven cooking. The outside burns before the inside warms up. Always let the steak sit out for at least 30 minutes before grilling.
Tips For The Best Grilled Filet
These extra tips will take your filet from good to great.
Use A Reverse Sear For Thicker Cuts
If your filet is 2 inches thick or more, consider reverse searing. Cook the steak on the cool side of the grill at around 250°F until it reaches 115°F internally. Then sear it on high heat for 1 to 2 minutes per side. This gives you an even pink center from edge to edge.
Add Butter And Herbs At The End
During the last minute of grilling, add a pat of butter and some fresh thyme or rosemary to the top of the steak. The butter melts and bastes the meat, adding richness and aroma.
Let The Grill Do The Work
Do not press down on the steak with your spatula. That squeezes out the juices. Let the heat create the crust naturally.
Frequently Asked Questions
How Long Do You Grill A Filet Mignon For Medium-rare?
For a 1.5-inch thick filet, sear 3 to 4 minutes per side over high heat, then finish on the cool side for another 4 to 6 minutes. Total time is about 10 to 14 minutes. Always use a thermometer to be sure.
Should I Oil The Steak Or The Grill Grates?
Oil the grill grates, not the steak. Oiling the steak can cause flare-ups and a burnt taste. Use a paper towel dipped in oil and tongs to coat the grates.
Can I Grill Filet Mignon On A Charcoal Grill?
Yes. Charcoal adds a smoky flavor that works great with filet. Set up a two-zone fire with hot coals on one side and no coals on the other. Sear over the coals, then move to the cool side to finish.
What Is The Best Temperature To Grill Filet Mignon?
The hot side should be 450°F to 500°F for searing. The cool side should be around 300°F to 350°F for finishing. This two-zone setup gives you control.
How Do I Know When Filet Mignon Is Done Without A Thermometer?
You can use the finger test, but it is not very accurate. Touch the steak and compare it to the fleshy part of your palm below your thumb. Rare feels soft, medium-rare has a little resistance, and well-done feels firm. A thermometer is much more reliable.
Final Thoughts On Grilling Filet Mignon
Grilling filet mignon does not have to be intimidating. With a little prep and the right technique, you can cook a steak that rivals any steakhouse. Remember to start with a thick cut, season simply, use high heat for searing, and always rest the meat.
The key is practice. The more you grill, the better you will get at judging heat and timing. Do not be afraid to experiment with different seasonings or wood chips for extra smoke flavor.
Now you know exactly how to cook filet on grill. Fire up the grill, grab some good steaks, and enjoy a perfect meal. Your family and friends will thank you.