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Herb-crusted lamb with a gratin of leeks and brussels sprouts

Name: Herb-crusted lamb with a gratin of leeks and brussels sprouts
Yield: Serves 4
Cuisine: French recipes
Ingredients: 2 x 200g lamb neck fillets; 1 tbsp olive oil, plus extra for rubbing and drizzling; 1 garlic clove, lightly crushed; 2 leeks, cut into medium pieces; 150g brussels sprouts, trimmed and halved if large; 25g unsalted butter; 25g plain flour; 250ml semi-skimmed milk; Good grating of fresh nutmeg; 100g mixed grated Gruyère and Cheddar; 30g fresh breadcrumbs; Large handful of fresh flatleaf parsley, finely chopped; A few fresh rosemary sprigs, leaves stripped and finely chopped

Published: 31 Jan 11
Updated: 18 Mar 24

Serve this herb-crusted lamb and creamy, cheesy leek and brussel sprout gratin as a Sunday roast alternative or as part of a laid back dinner party menu.

Easy
February 2011

Test kitchen approved

Serves 4
Takes 25 minutes to make, 30 minutes to cook, plus resting

Serve this herb-crusted lamb and creamy, cheesy leek and brussel sprout gratin as a Sunday roast alternative or as part of a laid back dinner party menu.

Nutrition: per serving

Calories: 502kcals
Fat: 34.4g (16g saturated)
Protein: 30.7g
Carbohydrates: 17.1g (5.5g sugars)
Salt: 0.9g

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Ingredients

2 x 200g lamb neck fillets
1 tbsp olive oil, plus extra for rubbing and drizzling
1 garlic clove, lightly crushed
2 leeks, cut into medium pieces
150g brussels sprouts, trimmed and halved if large
25g unsalted butter
25g plain flour
250ml semi-skimmed milk
Good grating of fresh nutmeg
100g mixed grated Gruyère and Cheddar
30g fresh breadcrumbs
Large handful of fresh flatleaf parsley, finely chopped
A few fresh rosemary sprigs, leaves stripped and finely chopped

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Method

Preheat the oven to 200°C/fan180°C/gas 6. Rub the lamb with a little olive oil, then rub all over with the garlic clove. Season well.
Blanch the leeks and sprouts in boiling water for a couple of minutes. Drain and refresh under cold water, then drain again.
Melt the butter in a saucepan over a low heat, then stir in the flour and cook for a couple of minutes. Gradually add the milk, stirring constantly, to form a smooth sauce. Season well with nutmeg, salt and pepper, then add most of the cheese.

Stir through the leeks and sprouts, then transfer to an ovenproof dish and top with the breadcrumbs and the remaining cheese.
Heat the oil over a medium-high heat in a frying pan, while you mix the herbs together on a plate. Quickly sear the meat on all sides, then roll in the herbs. Put in a roasting tin and drizzle with a little more oil. Cook the lamb and the gratin in the oven for 15-20 minutes until the lamb is cooked but still pink in the middle, and the gratin is golden and bubbling. Leave the lamb to rest for 5 minutes on a warmed plate, loosely covered in foil, then slice into pieces and serve with the gratin.