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Grilled Onglet Steak with Chimichurri & Tomato Salad

Onglet is one of the most tastiest steak cuts you can cook. Sometimes called hanger steak, it has a loose, open grain and a deep beefy character that works particularly well over high heat.

The key is simple: cook it quickly, keep it rare to medium-rare, let it rest, then slice it thinly across the grain.

Served here with a sharp, herby chimichurri and ripe summer tomatoes, it makes a simple warm-weather supper that puts the flavour of the beef first.

INGREDIENTS

For the onglet

  • 1kg onglet steak
  • 1 tbsp olive oil
  • Sea salt
  • Freshly ground black pepper

For the chimichurri

  • 1 large bunch flat-leaf parsley, finely chopped
  • 2 tbsp fresh oregano leaves, finely chopped
  • 2 garlic cloves, finely grated or minced
  • ½ tsp chilli flakes, or to taste
  • 2 tbsp red wine vinegar
  • 100ml extra virgin olive oil
  • Sea salt
  • Freshly ground black pepper

For the tomato salad

  • 500g ripe tomatoes, preferably a mixture of sizes and varieties
  • 1 small red onion or 2 shallots, very finely sliced
  • 1 tbsp red wine vinegar or sherry vinegar
  • 2 tbsp extra virgin olive oil
  • Small handful flat-leaf parsley or basil leaves
  • Sea salt
  • Freshly ground black pepper
METHOD

1. Make the chimichurri

Combine the parsley, oregano, garlic and chilli flakes in a bowl.

Add the red wine vinegar and olive oil, season with salt and black pepper and stir well.

Leave the chimichurri to stand while you prepare the rest of the dish. This gives the garlic, herbs and vinegar time to come together.

2. Prepare the tomato salad

Cut the tomatoes into a mixture of wedges, halves and thick slices depending on their size.

Arrange them on a serving plate and scatter over the finely sliced onion or shallot.

Season with salt and pepper, drizzle with the vinegar and olive oil and gently toss.

Leave at room temperature while the steak cooks.

3. Prepare the onglet

Take the onglet out of the fridge around 30 minutes before cooking.

Pat the surface dry with kitchen paper, rub lightly with olive oil and season generously with salt and black pepper.

If the onglet is particularly long, cut it into two or three pieces to make it easier to handle on the grill.

4. Cook over high heat

Heat a barbecue, plancha, cast-iron griddle or heavy frying pan until very hot.

Place the onglet directly onto the hot surface and cook for approximately 3–5 minutes on each side, depending on thickness.

You are looking for a deeply browned exterior while keeping the middle rare to medium-rare.

For a more precise result, aim for an internal temperature of approximately:

  • Rare: 50–52°C
  • Medium-rare: 54–57°C

5. Rest

Transfer the steak to a warm plate or board and leave it to rest for 8–10 minutes.

Do not skip this stage. Onglet benefits enormously from a proper rest.

6. Slice across the grain

Look carefully at the direction of the muscle fibres and slice the steak thinly across the grain.

This is particularly important with onglet and makes a considerable difference to the tenderness of the finished steak.

7. Serve

Scatter the sliced onglet over or alongside the tomato salad.

Spoon over some of the chimichurri and serve the rest at the table.

Finish with a little extra sea salt if needed.

Multi-Cooker Option

Ninja Foodi MAX

Select Sear/Sauté on the highest setting and allow the cooking pot to become very hot.

Lightly oil and season the onglet, then sear it in batches if necessary so the pan is not overcrowded.

Cook for approximately 3–4 minutes on each side, depending on thickness.

Check the internal temperature and remove the steak at around 52–55°C for rare to medium-rare.

Rest for 8–10 minutes before slicing thinly across the grain.

Serve with the tomato salad and chimichurri as above.

Sides

Charred New Potatoes

Boil small new potatoes until almost tender, then lightly crush and finish them directly on the barbecue or in a hot cast-iron pan with olive oil, garlic and rosemary.

Grilled Courgettes with Lemon

Slice courgettes lengthways, grill until lightly charred and finish with lemon juice, olive oil and torn mint.

Sweetcorn with Chilli Butter

Grill whole corn cobs until lightly blackened, then brush with butter mixed with chilli, lime zest and a little sea salt.

Warm Flatbreads

Warm flatbreads directly over the grill and use them to wrap slices of onglet with tomato salad and chimichurri.

Bitter Leaf Salad

A simple salad of rocket, chicory or watercress works particularly well against the richness of the beef. Dress with lemon and olive oil.

Garlic & Rosemary Roasted New Potatoes

For something more substantial, crispy roasted new potatoes with plenty of garlic and rosemary make an excellent accompaniment.

Matches

Onglet has a pronounced beef flavour, so it works particularly well with ingredients that bring acidity, freshness or savoury depth.

Herbs: parsley, oregano, thyme, rosemary, coriander

Acidity: red wine vinegar, sherry vinegar, lemon, pickled onions

Sauces: chimichurri, romesco, salsa verde, mustard dressing

Vegetables: tomatoes, peppers, courgettes, aubergines, sweetcorn

Spices: black pepper, smoked paprika, chilli flakes, cumin

Other matches: garlic, capers, olives, anchovies, horseradish, blue cheese

Preparation Time: 20 minutes
Cooking Time: 8–12 minutes, plus resting

Hot Tips

  • Cook it hot and fast. Onglet is at its best over a very hot barbecue, griddle or cast-iron pan so you get a good crust without overcooking the middle.
  • Don’t take it beyond medium. Rare to medium-rare keeps the meat juicy and tender. Onglet can become noticeably firmer if cooked too far.
  • Use a thermometer if you can. Aim to remove it at around 52–55°C, allowing the temperature to rise slightly while resting.
  • Rest it properly. Give the steak 8–10 minutes before slicing so the juices redistribute.
  • Slice across the grain. This is probably the most important tip with onglet. The muscle fibres are very pronounced, so cutting across them makes a big difference to tenderness.
  • Keep the chimichurri fresh. Make it shortly before serving and keep it at room temperature rather than refrigerating it.
  • Salt the tomatoes just before serving. Salting them too early can draw out too much liquid and make the salad watery.
  • Don’t drown the steak in sauce. Spoon a little chimichurri over the sliced meat and serve the rest alongside so the beef flavour still comes through.
  • Cook in pieces if necessary. A whole onglet can be long and awkward; cutting it into two or three manageable sections makes it much easier to get an even sear.
  • Use the resting juices. Pour any juices left on the resting board back over the sliced steak before serving — they’re too good to waste.