How to Cook Fillet Steak Perfectly | The Grill Guide
How to cook fillet steak without turning an expensive cut into a rubbery disappointment is a question that trips up even confident home cooks. You have probably stood over a hot frying pan, watching the clock, unsure whether another thirty seconds means medium rare or overcooked. That uncertainty is completely normal, because fillet steak gives you almost no room for error compared to a forgiving cut like rump or sirloin.
The good news is that once you know the right cooking times, the right resting routine, and a couple of simple technique tricks, this cut becomes one of the easiest things in your kitchen to get right. You do not need a culinary degree. You need a hot pan, a thermometer or a bit of confidence with the touch test, and about fifteen minutes of your evening.
The Quick Answer: Fillet Steak Cooking Times
For a 2cm thick fillet steak in a hot pan, use these timings per side as your starting point.
| Doneness | Time Per Side (2cm steak) | Internal Temp |
|---|---|---|
| Rare | 2 to 3 minutes | 50 to 52°C |
| Medium rare | 3 to 4 minutes | 55 to 57°C |
| Medium | 4 to 5 minutes | 60 to 63°C |
| Well done | 6 minutes | 68°C plus |
Thicker cuts, around 4cm, need roughly an extra minute per side, and it helps to finish them in the oven rather than leaving them in the pan the whole time. Now let’s walk through exactly how to get there.
What Is Fillet Steak?
Fillet steak comes from the section of the sirloin that runs along the cow’s back, and it barely does any work as the animal moves. That is exactly why it is the most tender cut you can buy. It has very little fat or marbling, so it will never be as rich as a ribeye, but the texture is famously soft and almost melts on the fork.
Because it is so lean, fillet steak is unforgiving if you overcook it. There is no fat to keep it juicy once you push past medium, so timing really does matter here more than with other cuts.
Before You Cook: Preparation Steps
Good results start well before the pan gets hot.
- Take the steak out of the fridge 30 to 45 minutes before cooking so it reaches room temperature. A cold steak cooks unevenly.
- Pat the steak completely dry with kitchen paper. A wet surface steams instead of searing.
- Rub the steak lightly with a neutral oil, such as sunflower or vegetable oil, rather than olive oil, which burns at high heat.
- Season generously with sea salt just before it hits the pan. Salting too early can draw out moisture, but salting right before cooking actually helps build a better crust.
How to Pan Fry Fillet Steak
Pan frying is the most reliable way to cook fillet steak at home, and it is how most UK steakhouses cook it too.
- Heat a heavy based frying pan until it is very hot, almost smoking.
- Add a small amount of oil and place the steak in the pan. It should sizzle immediately.
- Cook without moving it for the first minute to build a crust, then flip every 30 to 60 seconds using the timings in the table above.
- Use tongs to sear the edges of the steak for 20 to 30 seconds each, especially if it is thick cut.
- Check doneness with a meat thermometer, or use the touch test below if you do not have one.
The Touch Test
Press the centre of the steak with a finger. Soft and springy means rare. A slight firmness with some give means medium rare. Firm all the way through means well done. It takes practice, but a thermometer removes the guesswork entirely.
How to Griddle Fillet Steak
A ridged griddle pan works almost identically to a frying pan but adds attractive char lines. Get the griddle white hot before adding the steak, and resist the urge to move it around. The same timings from the table above apply here.
How to Cook Fillet Steak on the Barbecue
For a 4cm fillet steak on a hot barbecue, cook for roughly 2 to 3 minutes per side for medium rare, then move it to a cooler part of the grill to finish if the outside is charring faster than the inside is cooking. A lid helps retain heat and cook more evenly.
Basting With Butter, Garlic and Herbs
In the last minute of cooking, add a knob of butter, a smashed garlic clove, and a sprig of rosemary or thyme to the pan. Tilt the pan slightly and spoon the melted, foaming butter over the steak continuously. This one step adds more flavour than almost any marinade.
How to Cook Fillet Steak in the Oven
For very thick cuts, sear the outside in a hot pan for about a minute per side, then transfer the whole pan to an oven preheated to 200°C for 4 to 6 minutes depending on thickness and desired doneness. This reverse sear style method gives you an even, controlled finish without overcooking the outside.
Sous Vide Fillet Steak Method
If you want restaurant level precision, sous vide is worth trying. Cook the seasoned steak in a sealed bag at 54 to 57°C for medium rare, for around 1.5 to 2 hours. Finish with a 30 second sear per side in a screaming hot pan to build the crust. This method gives you an edge to edge, perfectly even doneness that pan frying alone cannot match.
Resting Your Steak
Rest your fillet steak for at least 5 minutes after cooking, loosely covered with foil. This allows the juices, which get pushed toward the centre during cooking, to redistribute through the meat. Skip this step and you will lose those juices onto the plate instead of into every bite.
Common Mistakes to Avoid
- Cooking straight from the fridge. This leads to an overcooked exterior before the centre catches up.
- Overcrowding the pan. This drops the temperature and steams the steak instead of searing it.
- Skipping the rest. Cutting in immediately releases all the juice you worked to keep in.
- Using a pan that is not hot enough. A weak sear means a grey, flavourless crust.
- Constant flipping without a plan. Following a timing guide beats guessing every time.
What to Serve With Fillet Steak
Classic Sauces
- Peppercorn sauce
- Béarnaise
- Bordelaise, a rich red wine sauce
- A simple garlic and herb butter
Side Dish Pairings
- Triple cooked chips or a simple green salad
- Sautéed mushrooms
- Grilled asparagus or tenderstem broccoli
- A light watercress salad to cut through the richness
Fillet Steak vs Other Cuts
| Cut | Tenderness | Flavour | Best Cooking Method |
|---|---|---|---|
| Fillet | Extremely tender | Mild | Pan fry, griddle, sous vide |
| Sirloin | Tender | Fuller flavour | Pan fry, grill |
| Ribeye | Tender with marbling | Rich, fatty | Grill, pan fry |
Fillet wins on texture, sirloin gives you more flavour for less money, and ribeye sits somewhere in between with its fat driven richness. If you are still deciding which cut to buy, our full grilling and steak guide breaks down every option in more depth, and it is worth comparing your results against a trusted benchmark like Miller and Carter if you want a professional standard to aim for.
Frequently Asked Questions
How long do you cook a 2cm fillet steak for? About 3 to 4 minutes per side for medium rare in a very hot pan, adjusting up or down depending on how well done you like it.
Should you oil the pan or the steak? Oil the steak lightly rather than flooding the pan. This gives more even coverage and reduces smoking and splattering.
Do you need a meat thermometer for fillet steak? No, but it removes almost all guesswork. Aim for 55 to 57°C for a reliable medium rare.
Can you cook fillet steak from frozen? It is not recommended. A frozen steak cooks unevenly and you will likely overcook the outside before the inside reaches the right temperature.
Why is my fillet steak tough? Overcooking is the most common cause, since fillet has very little fat to keep it moist past medium. A pan that was not hot enough, or skipping the rest, can also make the meat seem tougher than it should be.
Final Thoughts
Fillet steak rewards a bit of attention and punishes a bit of guesswork, but once you have the timings down, it becomes one of the fastest, most impressive meals in your repertoire. Get the pan hot, watch the clock, rest it properly, and you will have a steakhouse quality plate at home in under fifteen minutes.