How to Cook Beef Over Fire - A Fire Chef’s Guide to Cuts, Heat and Timing

Beef is the protein people are least afraid of and most likely to ruin. Everyone has cooked a steak. Almost nobody has cooked one over a real fire, and the two are not the same job.

A gas barbecue gives you a dial. A fire gives you a moving target: a bed of embers that is furnace-hot at one end and gentle at the other, changing every fifteen minutes as it burns down. Once you stop fighting that and start using it, fire will cook beef better than any kitchen appliance you own. The crust is deeper, the smoke is real, and the meat tastes of something.

This is how I do it, at events and at home.

Choosing the Cut

The single biggest factor in whether fire-cooked beef works is thickness. A thin supermarket sirloin is a lost cause over embers - by the time you have any colour on the outside, the middle is grey. Ask your butcher to cut thick.

• Ribeye (at least 4cm thick): The most forgiving steak over fire. The fat seam through the middle renders and bastes the meat as it cooks. If you are cooking beef over flame for the first time, start here
• Sirloin with the fat cap on: Leaner than ribeye but the fat cap is the point. Render it first, standing the steak on its edge over the hot zone, then lay it flat
• Fillet: Tender but mild and very lean. It needs help - a hard sear, plenty of salt, and butter at the end. Honestly, there are better cuts for fire
• Bavette and onglet (flank and skirt): The chef cuts. Cheap, deeply flavoured, cooked fast and hot, sliced hard against the grain. Punch well above their price
• Short rib: Not a steak. This is a low and slow cut, full of connective tissue that needs hours to turn to gelatine. Worth every one of those hours
• Whole rib of beef (fore rib): The showpiece. Three or four bones, cooked away from the fire for a couple of hours, then seared hard at the end. This is what I put on for a party
• Brisket: The hardest thing on this list to get right and the most rewarding when you do. Twelve hours, minimum. Not a beginner project

One general rule that has never let me down: the harder a muscle worked while the animal was alive, the longer and slower you cook it. Rump and shin walked. Fillet did not.

Building the Fire

You are not cooking over flames. You are cooking over embers. Flames deposit soot and taste acrid; embers give clean, even radiant heat. Light your fire and then wait, usually forty minutes to an hour, until the flames have dropped and you have a glowing bed with a dusting of white ash.

Then build two zones. Rake two thirds of the embers to one side for direct, savage heat, and leave a thin layer at the other end for gentle indirect cooking. Every technique below is just a matter of moving meat between those two zones.

To check the heat without a thermometer, hold your hand about 12cm above the grill. If you can keep it there for two seconds, that is your searing zone. Five or six seconds is your gentle zone. It sounds crude and it is remarkably accurate.

On wood: oak, beech and ash all burn down to good, long-lasting embers. Fruit woods are sweeter and better with pork and poultry. Never cook over softwood, treated timber or pallet wood - resinous smoke tastes foul and the treatment chemicals are not something you want near food.

The Reverse Sear - My Default Method

For any thick steak or joint, this is the method I reach for nine times out of ten. It is close to foolproof and gives you edge-to-edge pink instead of a grey band under the crust.

• Season generously and early. Coarse sea salt, at least forty minutes ahead, and ideally the night before, uncovered in the fridge. The salt draws moisture out and then back in, seasoning the meat all the way through and drying the surface so it browns better
• Start in the gentle zone. Meat well away from the hot embers, lid off. You are aiming to bring the internal temperature up slowly to around 10C below your target
• Use a probe thermometer. This is the one piece of kit I will not compromise on. Guessing works until the day it does not, and beef is expensive
• Rest it before searing, not just after. Ten minutes off the heat lets the temperature even out
• Sear hard over the hot zone. Ninety seconds a side, maybe two minutes. You want a deep brown crust. Flare-ups from dripping fat are fine and brief - just move the meat if the flame is sitting on it
• Rest again. Five minutes for a steak, twenty for a joint, loosely tented

Target internal temperatures, pulled from the fire and allowing for carryover:

• Rare: pull at 48C, rests to 52C
• Medium-rare: pull at 52C, rests to 56C. This is where I cook almost everything
• Medium: pull at 57C, rests to 61C
• Anything beyond that: you are cooking it for someone who asked, and that is fine, but expect to lose juiciness

The most common thing I see is people searing first and then trying to bring the middle up. It works, but it gives you a thick grey ring of overcooked meat under the crust. Turn the order around and that ring disappears. Same fire, same steak, better result.
- Cai

Low and Slow: Short Ribs Over Embers

Beef short rib is the cut I would cook if I could only cook one. It has fat, bone, connective tissue and enormous flavour, and fire suits it perfectly.

• Season heavily with coarse salt and cracked black pepper. Short rib is thick and can take far more seasoning than you think
• Keep the fire small and steady at the far end of your setup. You are aiming for something around 120-140C in the cooking area, topped up with a fresh log every half hour or so
• Cook bone side down for the first few hours. The bone shields the meat from the heat
• Ride out the stall. Somewhere around 70C the temperature will stop rising for an hour or more as moisture evaporates off the surface. This is normal. Do not turn the heat up. Wrap in butcher paper if you want to push through it faster
• It is done at 95-98C internal, when a probe slides in with no resistance at all. Time is not the measure here, feel is. Reckon on five to seven hours
• Rest for a full hour before serving. It will still be steaming

Whole Rib of Beef for a Crowd

A three-bone fore rib feeds six to eight people and looks extraordinary coming off a fire. Same reverse-sear logic, larger scale.

Salt it the night before. Bring it up slowly in the indirect zone until the centre reads 48C, which usually takes around two hours for a three-bone joint. Then sear the whole outside over the hot embers, turning every minute or so until it is properly browned all over. Rest for a full twenty-five minutes before carving. Carve along the bone first to release the joint, then across into thick slices.

Serve it with something sharp to cut the richness. Chimichurri, salsa verde, horseradish, or just a pile of watercress and good mustard.

The Mistakes I Still See

• Cooking over flames instead of embers. Wait for the fire to burn down. Patience is most of this job
• Cold meat straight from the fridge. Take it out an hour before
• A wet surface. Pat it dry. Water has to boil off before browning can start, and that costs you crust
• Constant flipping and prodding. Leave it alone and let the crust form
• Cutting it straight away. All the juice ends up on the board instead of in the meat
• Slicing with the grain. Look at which way the fibres run and cut across them, especially on bavette and onglet where it is the difference between tender and chewy

Buying Better Beef

Fire is unforgiving of poor meat because there is nowhere to hide - no sauce, no long braise, just heat and salt. It is worth buying well.

Go to a proper butcher and ask two questions: how long has it been hung, and where is it from. Dry-aged for at least twenty-eight days makes a real difference to both flavour and texture. Native breeds - Sussex, Hereford, Dexter, Longhorn - tend to carry more intramuscular fat than continental crosses bred for lean yield, and that fat is where the flavour lives.

Grass-fed beef from a farm you can name will nearly always beat a supermarket steak of the same nominal cut, and a thick bavette from a good butcher costs less than a thin sirloin from a supermarket while tasting considerably better.

Beef over fire is not complicated. Buy it thick, salt it early, cook it gently and finish it hard, and rest it longer than feels reasonable. Do that and you will produce something a kitchen cooker cannot match, because no oven on earth gives you the radiant heat of a hardwood ember bed.

- Cai