Grilled Onglet of Irish Beef, Sautéed Wild Mushroom, Pancetta, Potato Puree and Red Wine Sauce

This sumptuous grilled onglet recipe from Andy McLeish demonstrates how taking care over the preparation and paring of ingredients pays off in bounds. A simple garnish of tender silverskin onions, girolles, trompettes and pancetta make the perfect accompaniment to the intensely-flavoured, tender beef onglet, served on a bed of creamy mash and drizzled with a voluptuous red wine sauce.

Ingredients

For the grilled onglet

500g of onglet, trimmed (save the trimmings for the sauce)
clarified butter
salt

For the potato purée

3 Désirée potatoes, large
200ml of double cream
100g of butter
salt
pepper
50ml of olive oil

For the red wine sauce

400g of beef trimmings, diced
2 shallots, roughly sliced
2 garlic cloves, sliced
3 sprigs of thyme
1 knob of butter
200ml of red wine
550ml of veal stock
salt

For the silverskin onions

200g of silverskin onions, small, peeled
1 knob of butter
5 sprigs of thyme
1 garlic clove, crushed
chicken stock, approximately 250ml
olive oil

For the mushrooms and pancetta

100g of pancetta lardons
100g of girolles
100g of trompette mushrooms
1 tsp parsley, chopped
olive oil
salt
pepper

by Irish Beef / July 4, 2018

Step 1

Preheat the oven to 180°C/gas mark 4

Step 2

To begin, make the potato purée. Wash the potatoes, sprinkle with salt and bake in a preheated oven until soft in the middle, for about 2 hours.

Step 3

Remove from the oven and whilst still hot, cut them in half and scoop out the soft flesh. Pass the flesh through a sieve quickly with a spatula. In a heavy-based pan, bring the cream and butter to the boil. Add the sieved potato and beat over the heat with a wooden spoon. Season the purée with salt and pepper, then add the olive oil and beat again until all of the oil is incorporated. Cover and leave in a warm place until needed.

Step 4

To make the red wine sauce, place a pan over a medium heat. Once hot, add the beef trimmings and brown well to colour and release the fat. Add the shallots, garlic and thyme and cook until everything is nicely caramelised.

Step 5

Add a knob of butter, allow to coat and caramelised a little more, then add the red wine to deglaze and allow to bubble away for a few minutes. Add the veal stock, allow to come to a simmer then reduce the heat and allow the sauce to bubble gently for 20 minutes.

Step 6

To prepare the onions, add a dash of oil to a hot frying pan and add the peeled onions. Cook, shaking the pan occasionally, until the onions are nicely coloured. Add a large knob of butter, followed by the garlic and thyme. Add the chicken stock and cook down until reduced, shaking the pan to coat the onions in the stock. By the time the stock has cooked down, the onions should be cooked through. Pass the sauce through a piece of muslin into a clean saucepan and season to taste.

Step 7

Add the pancetta to a hot pan with a tiny drop of oil and colour nicely, tossing until golden brown all over. Add the girolles, cook until golden, then add the trompettes and cook down. Sprinkle with the parsley, salt and pepper, then add the silverskin onions to complete the garnish.

Step 8

Season the onglet and place on a hot grill, occasionally brushing with clarified butter. Grill both sides until medium rare – this should take about 3–4 minutes – then remove from the grill and rest for 2 minutes in a warm place.

Step 9

To serve, place a spoonful of potato purée on a plate, slice the onglet and place over the top of the purée. Place a generous spoonful of the mushroom and mushroom mixture over the top and finish with a little red wine sauce.