Pommes boulangère with roast lamb
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Pommes boulangère with roast lamb

An irresistible all-in-one dish from Gordon - sure to be a firm favourite in minutes

Difficulty and servings

Moderately easy

Serves 6

Preperation and cooking times

Preparation time

Prep 30 mins

Cook time

Cook min 1 hr 40 mins

Plus 1hr soaking

Method

  1. Thinly slice the potatoes on a mandolin, then soak in a large bowl of cold water for 1 hr. Drain well, then pat dry between two clean tea towels. Halve the onions, then thinly slice. Heat 2 tbsp of oil in a large frying pan, then sauté the onions with 4 sprigs of thyme for around 10 mins, stirring once or twice. Stir in the vinegar and cook until evaporated, about 2 mins, stirring two or three times so the onions don't burn. Heat oven to 190C/fan 170C/gas 5.
  2. Arrange a quarter of the potatoes in a large ovenproof dish, reserving any larger slices for the top. Season, then sprinkle over leaves from 3 thyme sprigs and scatter over a third of the onions. Repeat the potato layers three times more and onions twice, seasoning in between, then finishing with a potato layer and more thyme sprigs.
  3. Bring the stock to the boil, then ladle it over, making sure it seeps down the sides. Dot the top with half the butter, then bake, uncovered, for 45 mins.
  4. While the potatoes are cooking, score the fat on the lamb rumps in a crisscross using the tip of a sharp knife. Cut the garlic bulb in half, place in a bowl with a drizzle of oil, the lamb and the remaining thyme, then leave to marinate. After the potatoes have been in for 45 mins, season both sides of each lamb rump.
  5. Heat more oil in a large non-stick frying pan and when hot, brown the rumps, fat-side down, for 5 mins with the garlic bulb. Then, turn and brown the rumps all over for 5 mins more. Add the remaining butter to the pan, turning the rumps in the melted fat. Place the rumps on top of the potatoes, adding the garlic and drizzling with the pan juices.
  6. Season again and return to the oven for about 35 mins. By now, the whole dish should be finished with cooked potatoes and tender lamb cooked to medium. Remove the lamb, then leave aside to rest for 10 mins, returning the potatoes to the oven to crisp up. To serve, slice each rump lengthways. Spoon the potatoes onto 6 warmed plates with slices of lamb on top.
Try

Lamb rumps

Rumps of lamb are a chef's favourite cut. Found between the top end of the leg and the start of the loin (also known as a chump), a rump about 330g in weight will serve two people. Order from your butcher with about two days' notice or when he gets his whole lambs delivered. Alternatively use racks of lamb, but only give them 20 mins for medium.

Per serving

706 kcalories, protein 40g, carbohydrate 52g, fat 39 g, saturated fat 18g, fibre 5g, salt 1.13 g

Recipe from Good Food magazine, February 2007.

Latest comments and suggestions

  • 28 November 2007

    Trishas file rated and commented on this recipe

    5 stars

    I have made this recipe many many times now and with such great results that my friends have asked for the recipe. Its not always easy getting the lamb rumps but well worth the effort.

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  • 17 January 2008

    NoaVazquez commented on this recipe

    This recipe is a winner. Would definitely serve it again!!

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  • 18 March 2008

    andy commented on this recipe

    GoodFood Team test comment, please ignore

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  • 12 April 2008

    Emma rated and commented on this recipe

    5 stars

    Delicious, simple to make and extremely impressive. Other lamb cuts can be substituted but rump steaks are the best.

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Difficulty and servings

Moderately easy

Serves 6

Preperation and cooking times

Preparation time

Prep 30 mins

Cook time

Cook min 1 hr 40 mins

Plus 1hr soaking

Great way to cook lamb and all in one main course.

Ingredients

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Per serving

706 kcalories, protein 40g, carbohydrate 52g, fat 39 g, saturated fat 18g, fibre 5g, salt 1.13 g

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