How to Cook Fillet Steak Perfectly Every Time

There’s nothing quite like sinking your teeth into a perfectly cooked fillet steak, tender, juicy, and bursting with flavour. Also known as beef tenderloin, fillet steak is prized for its buttery texture and lean, melt-in-your-mouth quality. Whether it’s a special dinner, a weekend treat, or impressing friends with your cooking skills, mastering how to cook fillet steak can turn any meal into a memorable experience. This guide will take you step by step, from picking the perfect cut to cooking it just right to finishing with mouthwatering pairings that elevate every bite. Get ready to turn your kitchen into your own steakhouse.

Choosing the Perfect Fillet Steak

Not all fillet steaks are created equal, and selecting the right cut makes all the difference in flavour and tenderness. Look for a piece of meat with a rich, deep red colour; this indicates freshness, and a fine marbling of fat that melts during cooking, enhancing juiciness and flavour. The surface should feel firm but springy to the touch, without any sliminess or off smells.

Thickness is also essential: a thicker steak allows for a juicy, tender centre while still developing a beautifully seared crust on the outside. While fresh fillet steak is ideal, if you’re using frozen, make sure it’s fully thawed in the fridge before cooking so the meat cooks evenly and retains its natural flavour and texture.

Explore more about different steak cuts to pick the perfect one for your meal.

Ingredients

  • 1 fillet steak (beef tenderloin), 200–250g per person
  • Salt and freshly ground black pepper
  • Olive oil or a light cooking oil
  • 1–2 knobs of butter (optional, for basting)
  • Fresh herbs such as thyme or rosemary (optional)
  • 1–2 cloves garlic, crushed (optional, for extra aroma)

A standard beef fillet steak contains roughly 200–250 calories per 100g, depending on the cut and how you cook it. Adding butter, sauces, or sides will increase the total calories, so keep this in mind if you’re tracking intake.

Preparing Your Steak

Getting your fillet steak ready properly is the first step to a perfect meal. Follow these simple steps:

  1. Bring to Room Temperature – Take the steak out of the fridge 20–30 minutes before cooking. This helps it cook more evenly and prevents the centre from staying too cold.
  2. Pat Dry – Gently pat the steak dry with kitchen paper. Removing excess moisture helps form a beautiful, caramelised crust when you sear it.
  3. Season Simply – Sprinkle salt and freshly ground black pepper on both sides. You can also add a drizzle of olive oil if you like. Avoid heavy marinades; fillet steak is tender enough to shine on its own.
  4. Optional Flavour Boost – If you want extra aroma, tuck in a sprig of thyme, a crushed garlic clove, or a small knob of butter to add subtle flavour during cooking.
  5. Rest Briefly – Let the seasoning sit for a few minutes. This allows the flavours to penetrate slightly before the heat hits the pan.

Following these steps sets the stage for cooking fillet steak perfectly every time, giving you a juicy, tender result with maximum flavour.

Methods to Cook Fillet Steak

There are several ways to cook fillet steak, and the right method often depends on your taste and available equipment. Here’s how to nail it every time:

Pan-Frying

Pan-frying is the classic method for a reason: quick, easy, and full of flavour.

Steps:

  1. Preheat a heavy skillet until very hot.
  2. Lightly oil the pan or brush the steak with olive oil.
  3. Place the steak in the pan and sear for 2–3 minutes per side for medium-rare (adjust time based on thickness).
  4. Add a knob of butter, crushed garlic, and fresh herbs for extra aroma.
  5. Spoon the melted butter over the steak while cooking to enhance flavour.
  6. Remove the steak and let it rest before slicing.

Grilling

Grilling gives your fillet steak that smoky, charred taste everyone loves.

Steps:

  1. Preheat your grill to high heat.
  2. Brush the steak lightly with oil and season.
  3. Place the steak on the grill and cook for 3–4 minutes per side for medium-rare.
  4. Turn only once to get a nice crust.
  5. Remove and rest for 5–10 minutes before serving.

Oven-Roasting

Perfect for thicker steaks that need gentle finishing.

Steps:

  1. Preheat your oven to 180°C.
  2. Sear the steak in a hot pan for 2–3 minutes per side to lock in juices.
  3. Transfer the steak to the oven and cook for 5–10 minutes, depending on thickness and desired doneness.
  4. Check using a meat thermometer or finger test.
  5. Let the steak rest before slicing to keep it juicy.

Air Fryer Fillet Steak

Yes, even your air fryer can deliver a juicy, tender fillet steak with a lovely crust.

Steps:

  1. Preheat the air fryer to 200°C.
  2. Lightly oil and season your steak.
  3. Place the steak in the basket and cook for 10–12 minutes for medium-rare.
  4. Flip halfway through cooking for even browning.
  5. Remove and rest for a few minutes before serving.

Whether you pan-fry, grill, or oven-roast your fillet steak, the goal is the same: tenderness and flavour. And if you’d like to taste how the pros do it, Asador Bar and Grill, a restaurant in Leicester Square, serves some of the finest fillet steaks in London.

Fillet Steak Doneness Guide

DonenessCooking Time (per side)Internal Temperature
Rare2–3 minutes50°C
Medium-Rare3–4 minutes55°C
Medium4–5 minutes60°C
Medium-Well5–6 minutes 65°C
Well-Done5–6 minutes 70°C+

Using a meat thermometer is the best way to get your fillet steak perfectly cooked.

Pairing Suggestions

Enhancing your fillet steak with the right accompaniments takes it from great to unforgettable. Here are some ideas:

Sauces

  • Chimichurri sauce – a fresh, aromatic twist.
  • Mushroom sauce – adds a rich, savoury flavour.
  • Veal jus sauce – deep, meaty notes that complement the steak.

Side Dishes

  • Mashed potatoes – creamy and classic, a perfect match for fillet steak.
  • Sautéed mushrooms – adds texture, colour, and earthy notes.
  • Seasonal vegetables – lightly cooked to balance the steak’s richness.

Wines and Beverages

  • Red wines – a selection available on the wine menu.
  • Non-alcoholic – sparkling water to refresh the palate.

And if you’re looking to elevate your fillet steak experience even further, check out some of the finest types of cocktails to pair with your meal.

Tips for the Best Fillet Steak

Tips for the Best Fillet Steak

  • Give it space: Avoid overcrowding the pan, grill, or air fryer fillet steak basket. This helps the steak sear properly and develop a beautiful crust.
  • Rest before slicing: Let your fillet steak rest for 5–10 minutes after cooking to keep it juicy and tender.
  • Balance flavours: Pair sauces and sides with the steak’s richness for a perfectly harmonious meal.
  • Check doneness: Use a meat thermometer if you’re unsure; medium-rare fillet steak should reach around 55°C internally.
  • Follow a guide: Whether you’re learning how to cook fillet steak, experimenting with fillet steak recipes, or trying air fry fillet steak, these tips will help you achieve consistently tender, flavourful results.

Conclusion

Cooking the perfect fillet steak starts with a great cut and the right technique. From pan-searing to grilling, each method brings out the rich, tender flavour that makes this cut so special. Add your favourite sauce and sides, and you’ve got a meal that feels like pure indulgence.

If you’d rather savour the experience without the prep, visit our restaurant in Leicester Square, Asador Bar and Grill, or our other locations in Oxford Circus and South London, where expertly grilled steaks are always on the menu. Book your table today and enjoy the authentic taste of a perfectly cooked fillet steak.

FAQs

What are common mistakes in seasoning steak?

Over-seasoning, using too much salt too early, or relying heavily on strong marinades are common mistakes. For fillet steak, simple seasoning with salt and pepper is usually enough to highlight its natural flavour.

Filet mignon is most tender and flavourful when cooked rare to medium-rare. Cooking it beyond medium can dry out the delicate meat.

No, washing filet mignon is not recommended. Pat it dry with kitchen paper instead; this helps achieve a perfect sear and avoids splattering.

Filet mignon is best cooked quickly over high heat to sear the outside while keeping the centre tender and juicy. Slow cooking is generally better for tougher cuts, not this delicate steak.

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