Searing
A hot pan, a dry surface and the patience to leave it alone. Get those three right and you get a deep brown crust that tastes of roasting.
Why it works
The brown crust on a good steak comes from the Maillard reaction. Amino acids and sugars on the surface of the food react with each other and form hundreds of new compounds, which give roasted, nutty, savoury flavours and that deep brown colour. The reaction runs slowly at lower temperatures and gets going properly from roughly 140 °C. The hotter the surface, within reason, the faster the crust forms.
Water caps the temperature. While there is moisture on the surface, the surface stays near 100 °C, because the heat goes into turning that water into steam. Only once it has boiled off can the surface climb past 140 °C and start to brown. Every drop you leave on the meat costs you time, and that time is spent cooking the inside further. This is why wet meat goes grey before it goes brown, and why a crowded pan stews.
Searing does not seal in juices. That old idea was disproved in the 19th century and a seared steak loses as much moisture as an unseared one. You sear for flavour and texture. In many dishes the sear is also the start of a sauce: the brown residue left in the pan, the fond, is concentrated flavour that a splash of liquid lifts straight into a pan sauce or braise.
What you need
- Heavy pan: Cast iron, carbon steel or thick stainless steel holds heat when cold meat goes in, so the surface keeps browning; avoid non-stick, which should not be heated empty or very hot and leaves almost no fond.
- Kitchen paper: For patting the meat completely dry just before it goes in the pan.
- Tongs or a fish slice: Tongs for meat, a thin flexible slice for fish and scallops.
- Instant-read thermometer: The only reliable way to know when thick cuts are done; guessing by touch takes years of practice.
- Wire rack and tray: For salting ahead uncovered in the fridge, and for resting meat so the underside crust stays crisp.
- Splatter screen: A fine mesh lid that stops hot fat spitting over the hob while still letting steam escape.
Step by step
Salt at the right moment
Salt draws moisture to the surface within a few minutes. Over the next 40 minutes or so that brine is reabsorbed, seasoning the meat more deeply and leaving the surface drier. So salt either just before cooking, or at least 45 minutes ahead. In between, the meat is sitting in a wet film that you have to boil off. Use about 1% of the meat's weight in salt, roughly a level teaspoon of fine salt per 500 g.
Tip: For the best crust, salt steaks and chops the day before and leave them uncovered on a rack in the fridge. The surface dries to a thin skin that browns fast.
Pat it dry
Press kitchen paper firmly over every surface, including the edges, just before cooking. Do this even after dry-brining. Meat straight from the fridge is fine to sear; letting it sit out for 30 minutes barely changes its core temperature and leaves the surface damp from condensation.
Preheat the pan properly
Put the dry pan over medium-high heat for 3–5 minutes for cast iron, a little less for carbon steel or stainless. Flick in a few drops of water. If they hiss and vanish, it is not ready. If they bead into balls that skate across the surface, it is. Then add a thin film of neutral oil, enough to coat the base. When the oil shimmers and moves like water, with the first faint wisp of smoke, the pan is hot.
Tip: Heavy pans heat unevenly on small burners. Turn the pan a quarter turn now and then while it heats so the hot spot spreads.
Lay it in, away from you
Lower the meat into the pan with the edge nearest you going in first, so any splash goes away from you. It should sizzle loudly straight away. Leave space between pieces, at least a couple of centimetres. If the pan looks full, cook in batches.
Tip: If the sizzle dies to a gentle fizz, the pan was too cool or too crowded. Turn the heat up and take a piece out.
Leave it until it releases
Do not poke or shove it for the first minute or two. Raw protein bonds to hot metal, then lets go once a crust has formed. If you lift a corner and it tears or clings, give it another 30 seconds. When it slides with a gentle nudge, it is ready to turn.
Turn once or often
Turning once gives a slightly deeper crust and is easy to manage. Turning every 30 seconds or so cooks a little faster and more evenly, with a thinner grey band, because neither side has time to overheat. Both work well. Pick one and use the thermometer to decide when to stop. Hold thick steaks on their edges for a minute to render the fat.
Baste with butter at the end
For the last minute or two, lower the heat to medium, add a good knob of butter, a few crushed garlic cloves and some thyme or rosemary. Tilt the pan towards you and spoon the foaming butter over the meat again and again. The milk solids brown and add a nutty flavour, and the aromatics perfume the fat. Added at the start, butter would burn.
Tip: Stop when the butter smells nutty and turns hazelnut brown. Black specks mean it has gone too far.
Rest briefly, then slice
Take the meat out a few degrees below your target, because the hot outer layer keeps pushing heat inward. A steak rises 2–4 °C, a thick roast more. Rest it on a rack or warm plate for about 5 minutes for a steak. A short rest lets the temperature even out and keeps more juice on the board when you slice. Longer and the crust goes soft.
Tip: Pour any resting juices back over the meat or into the sauce.
Use the fond
Tip out excess fat, put the pan back over medium heat and add a splash of stock, wine or water. Scrape up the brown residue with a wooden spoon as the liquid bubbles. This is the base of a pan sauce, or the start of a braise. If the bits in the pan are black rather than brown, skip this; they will taste bitter.
Core temperatures for beef and lamb
| Doneness | Take off the heat at | After resting | What it looks like |
|---|
| Rare | 47–49 °C | 50–52 °C | Deep red, cool-looking centre, very soft |
| Medium-rare | 52–54 °C | 54–57 °C | Red-pink, warm right through, juicy |
| Medium | 57–60 °C | 60–63 °C | Pink centre, firmer |
| Medium-well | 62–65 °C | 65–68 °C | Faint pink, noticeably firmer |
| Well done | 67 °C | 70 °C and above | Grey-brown throughout, firm |
Fats for searing
| Fat | Approx. smoke point | Use it for |
|---|
| Refined rapeseed, sunflower or groundnut oil | 220–230 °C | Everyday searing; neutral flavour |
| Refined avocado oil | 250–270 °C | Very hot sears; expensive |
| Light or refined olive oil | about 240 °C | Searing where you want a hint of olive |
| Extra virgin olive oil | 190–210 °C | Medium-heat browning, fish, vegetables |
| Clarified butter or ghee | about 250 °C | Searing with butter flavour |
| Beef dripping or duck fat | 190–210 °C | Medium-high searing, potatoes, rich flavour |
| Butter | about 150 °C | Basting at the end only |
Troubleshooting
The meat went grey and watery instead of brown
The surface was wet, the pan was too cool, or there was too much in it. Liquid pooled and the meat simmered. Dry it harder, preheat longer, and cook in batches with space around each piece.
It stuck and the crust tore off
You moved it before the crust formed, or the pan was not hot enough when the meat went in. Wait until it releases on its own. In stainless steel, sticking at first is normal; it lets go once browned.
A thick grey band under the crust
The outside spent too long at high heat while the centre caught up. Use the reverse sear for anything over about 3 cm thick, or flip more often. A drier surface also shortens the sear.
The crust is patchy, dark in some spots and pale in others
The pan has hot spots, or the meat is uneven and only touches in places. Preheat longer and rotate the pan. Press the meat down gently with a spatula for a few seconds, and baste to brown the gaps.
The kitchen filled with smoke and the crust tastes bitter
The fat passed its smoke point and burned, or butter went in too early. Use a refined oil, use only a thin film, and turn the heat down a notch once the meat is in. Add butter only for the final minute or two.
The fish skin curled up and only browned in the middle
Skin shrinks fast when it hits the heat, lifting the edges away from the pan. Press the fillet flat with a fish slice for the first 30 seconds. Scoring the skin lightly with a few shallow cuts also helps on thick fillets.
Hot fat, smoke and cooking through
Searing uses the hottest fat in most home kitchens. Treat it with care, and remember that a pink centre is only right for some meats.
- Lay food into hot fat away from you, keep handles turned inwards, and never add water or wet food to smoking oil.
- If fat catches fire, turn off the heat and cover the pan with a lid or damp cloth. Never use water.
- Run the extractor on high before you start, open a window, and keep the heat below the point where the oil smokes heavily.
- Poultry must be cooked through. The USDA gives 74 °C in the thickest part, which is safe instantly. Lower temperatures are also safe if held long enough, as in sous vide.
- Minced meat, including burgers, must reach 71 °C all the way through, because surface bacteria are mixed into the centre.
- Whole cuts of pork are safe from 63 °C with a 3-minute rest according to the USDA. Some national guidelines still advise cooking pork through; follow local advice for vulnerable guests.
