Chateaubriand vs Fillet Steak: Which Cut Should You Choose?

Both Chateaubriand and fillet steak are premium cuts from British beef, known for their tenderness and flavour — but they're not the same thing. Here's how they differ, the story behind why British Chateaubriand is worth seeking out, and a full step-by-step method for cooking it perfectly at home.

The cuts, compared

Chateaubriand is cut from the thickest, centre part of the beef fillet. It's lean yet succulent, with a velvety, buttery texture, and is typically served as a sharing cut for two — a 500-600g piece is standard. Producers including Warrendale Wagyu and Farm Butchers source their Chateaubriand from grass-fed British cattle, which grazes freely on natural pasture — producing beef with superior marbling, a cleaner, more natural taste, and deeper flavour than grain-finished alternatives.

Fillet steak is also cut from the fillet, but individually portioned from the narrower sections rather than the centre. It's prized for being lean, tender and delicate rather than richly marbled. Our Whole Welsh Beef Fillet or Cornish Fillet of Beef from Primrose Herd offer exceptional flavour from free-range, British beef.

Why choose British Chateaubriand

British beef benefits from a temperate climate, rich grasslands and strict farming standards, which together produce cattle with excellent marbling while keeping the meat tender. Combined with traditional slow-farming methods, that's what gives a well-sourced British Chateaubriand its restaurant-quality result at home.

How to cook the perfect Chateaubriand

Ingredients:

• Grass-fed Chateaubriand (500g-600g)
• Sea salt and freshly ground black pepper
• 2 tbsp olive oil
• 50g unsalted butter
• 2 sprigs of fresh thyme
• 2 cloves of garlic, crushed

Method:

1. Prepare the meat: Remove from the fridge 30 minutes before cooking. Season generously with salt and pepper.
2. Sear: Heat olive oil in a heavy pan over high heat. Sear for 2-3 minutes on each side until golden.
3. Baste: Add butter, thyme and garlic, then spoon the melted butter over the meat for 2 minutes.
4. Roast: Transfer to a preheated oven at 200°C (180°C fan) and cook for around 15 minutes for medium-rare.
5. Rest: Cover loosely with foil and rest for at least 10 minutes — this lets the juices redistribute evenly through the meat before slicing.

For fillet steak, the method is quicker: sear over high heat, baste with butter for added richness, then rest for roughly as long as it was cooked to keep it juicy.

Sauces to serve alongside

There are a few classic ways to serve Chateaubriand or fillet steak. For a rich, luxurious option, try a Champagne sauce:

Champagne Sauce:

• 150ml Champagne
• 100ml double cream
• 1 shallot, finely chopped
• 1 tbsp Dijon mustard
• Salt and pepper to taste

Soften the shallot in the pan, add the Champagne and reduce by half, then stir in the cream and mustard. Simmer until thickened and season to taste.

Prefer something punchier? Try a classic Peppercorn Sauce instead:

Peppercorn Sauce:

• 1 tbsp olive oil
• 50g butter
• 2 tbsp brandy
• 150ml double cream
• 1 tbsp green peppercorns

Deglaze the pan with brandy after cooking your steak, then add the cream and peppercorns, stirring until the sauce thickens. Serve over the sliced steak with roast potatoes or seasonal vegetables.

FAQ

What's the difference between Chateaubriand and fillet steak?

Chateaubriand is cut from the thickest, centre part of the fillet and is typically served as a sharing cut for two. Fillet steak is cut from the narrower sections of the same muscle and portioned individually — both are lean and tender, but Chateaubriand has a richer, more buttery texture.

How long should you rest a Chateaubriand after cooking?

Rest for at least 10 minutes, loosely covered with foil, before slicing. This allows the juices to redistribute evenly through the meat.

What sauce goes best with Chateaubriand?

Champagne sauce and peppercorn sauce are both classic pairings. A Bearnaise sauce also works well if you prefer something more traditional.

How much Chateaubriand do I need per person?

A typical Chateaubriand weighs 500-600g and comfortably serves two people as a sharing cut.

You can buy premium British steaks online from Farmfetch, including Wagyu Chateaubriand from Warrendale Wagyu, a Whole Welsh Fillet, or Cornish Fillet Steak from Primrose Herd. Browse our full range of steaks here.