The sauce that turns a steak into an occasion

Béarnaise has a reputation as chef's territory — it isn't. It's three egg yolks, a sharp tarragon reduction and a stream of warm butter, whisked over gentle heat until it turns thick, glossy and faintly wobbly. Twenty minutes of honest attention, most of it while the steak rests. And there's no better steak to learn it on than a grass-fed T-bone: the fillet side was born for béarnaise, and the sirloin side isn't far behind. This is occasion cooking you can pull off on an ordinary Saturday.

45 mins 2 servings Prep 20 minsCook 25 minsMain CourseFrench

Ingredients

  • 1 Your Farmer grass-fed beef T-bone steak (about 500g)
  • 1 tbsp olive oil
  • Salt and pepper to season
  • 2 tbsp white wine vinegar (for the bearnaise)
  • 2 tbsp dry white wine (for the bearnaise)
  • 1 eschalot, finely chopped (for the bearnaise)
  • 8 black peppercorns, cracked (for the bearnaise)
  • 1/2 bunch tarragon, leaves picked, stalks reserved (for the bearnaise)
  • 3 egg yolks (for the bearnaise)
  • 175g unsalted butter, melted and kept warm (for the bearnaise)
  • Squeeze of lemon juice (for the bearnaise)

Instructions

For the tarragon reduction

Simmer the vinegar, wine, eschalot, peppercorns and tarragon stalks in a small pan until reduced to about a tablespoon of liquid. Strain into a heatproof bowl and let it cool for a few minutes.

2 tbsp white wine vinegar2 tbsp white wine1 eschalot8 peppercorns

For the steak

Take the steak from the fridge 15 minutes ahead, pat very dry, rub with the oil and season generously.

1 T-bone steak1 tbsp olive oil

Heat a grill pan over high heat until properly hot. Cook the steak 4 minutes with the smaller fillet side angled toward the pan's cooler corner — it's the leaner muscle and finishes first.

Turn once and cook another 3–4 minutes, to 52–54C in the thickest part of the sirloin side. Rest on a warm plate, loosely covered, for 10 minutes — which is exactly the time the sauce needs.

For the bearnaise

Add the egg yolks to the bowl with the reduction and set it over a pan of barely simmering water — the bowl shouldn't touch the water. Whisk until pale, thick and ribbony, 2–3 minutes.

3 egg yolks

Off and on the heat as needed, add the warm melted butter in a thin stream, whisking constantly, until the sauce is thick and glossy. If it tightens too far, whisk in a teaspoon of warm water.

175g melted butter

Chop the tarragon leaves and fold them through with the lemon juice and salt to taste. Keep the sauce warm — not hot — off the heat.

tarragon leavessqueeze of lemon

Carve both muscles off the bone, slice across the grain, and serve with the béarnaise in a generous pool alongside — chips or steamed greens complete the bistro plate.

Appears in

Your Farmer CSA grass-fed beef share — vacuum-sealed steaks, roasts, mince and sausages, paddock-to-plate NSW & ACT delivery
CSA Grass Fed Beef Share
From $176.67

Why Béarnaise Belongs on a T-Bone

Walk into any old-school French bistro and the grandest thing on the menu is a bone-in steak with béarnaise — the pairing has held for well over a century because it solves itself. Béarnaise is butter, egg and tarragon given structure: rich, sharp and aniseed-fragrant. The T-bone's fillet side is the leanest, most delicate muscle on the animal, and the sauce supplies exactly the richness it doesn't carry; the sirloin side brings the flavour and stands up to the tarragon. Your Farmer® beef is 100% grass-fed and leaner than grain-finished, which makes the partnership work even harder — clean beef, rich sauce, each covering the other's quiet spot. The 500g T-bone turns up in the Pack B and Pack D boxes of our beef subscription. On the pan, one rule as always: the little fillet side finishes first, so it gets the cooler corner.

Swaps and Variations

No tarragon at the shops? Chervil is the classic stand-in, or use half parsley and accept a gentler sauce — dried tarragon, sadly, isn't worth the jar it came in here. A stick blender in a jug makes a faster, sturdier béarnaise if the whisk intimidates — drizzle the butter in with the motor running — though the whisk version is worth learning once for the wrist-memory alone. And if a warm emulsion is a step too far tonight, a tarragon compound butter gives you most of the joy for a tenth of the attention — the same trick as our scotch fillet with compound butter. For where the T-bone sits among its neighbours, the every-cut guide has the map.

Storage and Leftovers

Béarnaise is a serve-it-tonight sauce — it can't be reheated without splitting, though it will hold happily for half an hour in its bowl over the warm (switched-off) water bath. Chill any leftovers and treat them as tarragon butter: melted gently over steamed vegetables tomorrow, it's glorious, just don't expect it to be sauce again. The steak follows the usual rules — thawed raw, 2–3 days in the coldest part of the fridge; cooked, 3 days airtight, best eaten cold and thinly sliced. Bone to the stock bag.

Frequently asked questions

My béarnaise split — can I save it?

Usually, yes. Take it off the heat and whisk in a teaspoon of warm water; if that fails, start with a fresh yolk in a clean bowl and whisk the split sauce into it slowly. Most splits come from too much heat or adding butter too fast.

Can I make the sauce ahead?

The reduction, yes — days ahead, kept in the fridge. The finished sauce, no; it holds about 30 minutes warm and won't survive the fridge-and-reheat trip. Make it while the steak rests and the timing takes care of itself.

Can I use dried tarragon?

No — it loses the aniseed brightness that defines the sauce. Fresh tarragon or fresh chervil; if neither's available, make the steak with a herb butter instead and save béarnaise for another week.

What doneness suits a steak served with béarnaise?

Medium-rare — pull it at 52–54C and rest for 10 minutes. The sauce is rich, and rosy, juicy meat balances it; well-done steak plus béarnaise is heavy going.

0 commentson T-Bone with Bearnaise from Scratch

Three Simple Steps

A whole table of real food.

Your Farmers grow grass-fed beef and lamb, pastured eggs and the best eco-grown veggies and produce — every item grown to the same ecological standard, every farmer one you can know by name. One subscription, your whole real-food shop.

01

Reserve your share — or try a pack

Subscribe to a share of the harvest, or start with a one-off fixed pack.

02

Make it your own

Pick your delivery rhythm and what's in the box. Skip or cancel anytime — no lock-in.

03

Cook, savour, know your farmer

We deliver in a reusable esky we collect next time. No couriers, no waste.

5.0
Vendor:Your Farmer

CSA Grass Fed Beef Share

Price$176.67
Vendor:Your Farmer

CSA Pastured Lamb Share

Price$183.33
Vendor:Your Farmer

Grass-Fed Steak Box

Price$158.89
Vendor:Your Farmer

Grass-Fed Mince, Sausage and Diced Beef Pack

Price$264.44
Vendor:Your Farmer

Grass-Fed Beef and Lamb BBQ Box

Price$286.67
Vendor:Your Farmer

Pastured Lamb Roast and Slow-Cook Box

Price$155.56
Vendor:Your Farmer

Quarter, Half or Whole Cow: Grass-Fed Beef, Cut Your Way

Price$1,145.00
Vendor:Your Farmer

Whole Pastured Lamb, Cut Your Way

Price$525.00

More Recipes

View all

Osso buco-style braised grass-fed lamb chump chops in tomato sauce over soft polenta, topped with gremolata.

Osso Buco-Style Braised Chump Chops with Gremolata

The Milanese treatment — chops braised low in white wine and tomato, lifted at the end by lemony gremolata

Osso buco is Milan's great braise, and the finishing touch is what makes it: gremolata, a raw scatter of lemon zest, garlic and parsley chopped fine, stirred in right at the end. Against an hour and a half of slow, rich braising, that fresh, sharp hit is a revelation — it stops the whole thing feeling heavy and makes you reach for another spoonful. Lamb chump chops stand in beautifully for the traditional veal shin here, their fat and connective tissue melting into a glossy sauce over soft polenta. It takes time, but almost none of it is yours. This is a dish to be proud of.

Read moreabout Osso Buco-Style Braised Chump Chops with Gremolata

A thick bowl of split pea and lamb bone soup topped with shredded lamb and mint.

Split Pea and Lamb Bone Soup

Pea-and-ham thinking, straight from the lamb paddock

Every Australian family has a pea-and-ham soup story, and every one of those soups leans on the same trick: a bone in the pot doing the heavy lifting. This is that trick with lamb bones instead of a hock. The split peas collapse into a thick, velvety base, the bones give the broth real depth and body, and a pinch of smoked paprika stands in for the smokehouse if you want that familiar edge. It's the thriftiest pot in this whole collection — pantry peas, add-on bones, one lazy afternoon — and it eats like a hug.

Read moreabout Split Pea and Lamb Bone Soup

Grass-fed T-bone steak sliced and served with homemade tarragon bearnaise and chips, bistro style.

T-Bone with Bearnaise from Scratch

The sauce that turns a steak into an occasion

Béarnaise has a reputation as chef's territory — it isn't. It's three egg yolks, a sharp tarragon reduction and a stream of warm butter, whisked over gentle heat until it turns thick, glossy and faintly wobbly. Twenty minutes of honest attention, most of it while the steak rests. And there's no better steak to learn it on than a grass-fed T-bone: the fillet side was born for béarnaise, and the sirloin side isn't far behind. This is occasion cooking you can pull off on an ordinary Saturday.

Read moreabout T-Bone with Bearnaise from Scratch