# The Perfect Grilled Beef Fillet

> Beef fillet done to the point: reverse sear, core temperature and resting time explained.

Beef fillet is the noblest cut of beef. Lean, tender, intense in flavour. Once you've eaten it done right off the grill, you'll never go back to the pan. The key: patience, temperature control and the right method.

## Why Reverse Sear?

Classically, the fillet is seared hot first and then cooked through. The problem: the outside burns quickly while the inside cooks unevenly. Reverse sear flips the script. You first cook the meat gently in the indirect zone up to core temperature and only give it its hard sear at the very end. The result: evenly pink from edge to edge with a perfect crust.

## Ingredients for 4

- 800 g beef fillet in one piece (centre cut)
- 2 tbsp coarse sea salt
- 1 tbsp freshly ground black pepper
- 2 sprigs rosemary
- 4 garlic cloves, lightly crushed
- 50 g butter
- 2 tbsp rapeseed oil for searing

## Preparation

Take the fillet out of the fridge at least 60 minutes before grilling. Cold meat cooks unevenly. Pat it dry and rub it generously with salt. No pepper - it would burn later during the sear.

Set up the grill for two zones: a direct hot zone (about 250°C) and an indirect zone (about 110 to 120°C). On a kettle grill, pile the coals to one side. On a gas grill, light only one side.

## Phase 1: Indirect Cooking

Place the fillet in the indirect zone and close the lid. Insert a probe thermometer into the thickest part. The meat now needs about 35 to 45 minutes, depending on thickness.

Target core temperatures:
- 48°C: rare (very red)
- 52°C: medium rare (red centre, ideal)
- 56°C: medium (pink)
- 60°C: medium well

We pull the fillet at 50°C. In the next phase, the sear and the resting time raise the temperature by another 3 to 4°C.

## Phase 2: Searing

Crank the direct zone up to maximum heat. Over a cast-iron grate, you shouldn't be able to hold your hand above it for more than two seconds. Brush the fillet with rapeseed oil and lay it on the hot grate. 60 to 90 seconds per side, then a quarter turn for the classic diamond pattern.

In the last 30 seconds: butter, rosemary and garlic into a cast-iron pan next to the meat. Baste the fillet several times with the melted, aromatic butter.

## Phase 3: Resting

The most important step comes last: let it rest for 10 minutes. Cover loosely with foil - don't wrap it tight. This lets the juices redistribute through the meat instead of running out when you slice it. Skip this and you throw away half your work.

## Slicing and Serving

Cut the fillet across the grain into finger-thick slices. Fresh pepper on top, a few flakes of coarse sea salt. Goes well with: grilled vegetables, a punchy chimichurri, or simply good bread with herb butter.

## Common Mistakes

- Meat straight from the fridge onto the grill: uneven cooking
- Peppering before the sear: pepper burns and turns bitter
- Flying blind: without a thermometer it's down to luck
- Not enough resting time: all the juices end up on the board

## Tip

Invest in a digital probe thermometer and a wireless thermometer for the lid. That's the difference between "pretty decent" and "restaurant quality". And remember: practice makes perfect. By your third fillet, you'll have it nailed.

*The best meat, ready-made rubs, spice blends, marinades, beef jerky and sauces are available from the butcher you can trust: [Basimetzg](https://basimetzg.ch/).*