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Roast leg of lamb with garlic & watercress butter served on a serving plate

Roast leg of lamb with garlic & watercress butter

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  • Preparation and cooking time
    • Prep:
    • Cook:
    • plus resting
  • Easy
  • Serves 6-8

Season a leg of lamb with our watercress and garlic butter for a new take on spring lamb. Parmesan breadcrumbs also add a lovely crunch and depth of flavour

Nutrition: Per serving (8)
NutrientUnit
kcal436
fat27g
saturates14g
carbs7g
sugars1g
fibre1g
protein40g
salt0.7g
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Ingredients

  • 2kg bone-in leg of lamb
  • 100g watercress
  • 3 large garlic cloves , crushed
  • 4 anchovy fillets in oil, drained and finely chopped
  • 70g unsalted butter , softened
  • 3 rosemary sprigs

For the crumb

  • 100g sourdough bread , torn
  • ½ tbsp olive oil
  • 30g finely grated parmesan

Method

  • STEP 1

    Remove the lamb from the fridge 1 hr before cooking. Heat the oven to 200C/180C fan/gas 4. Use the tip of a knife to make 20-25 small slits in the lamb, then set aside in a roasting tin. Blitz the watercress, garlic and anchovies in a food processor until smooth, then add the butter and pulse to combine.

  • STEP 2

    Season the lamb, then spread over half of the butter mixture, pushing into the slits as well. Break the rosemary sprigs into pieces and tuck into the slits. Season, cover with foil and cook for 1 hr 20 mins for medium (a thermometer should read 55C), or 1 hr 40 mins, if you prefer the meat well done. Uncover the lamb halfway through cooking and spread over the remaining butter, then put back in the oven uncovered for the remaining time. 

  • STEP 3

    Meanwhile, blitz the sourdough in a food processor to make coarse crumbs. Toss with the oil and parmesan and spread out flat on a baking sheet. Put in the oven underneath the lamb for the last 20 mins of cooking, or until lightly golden and crunchy. Leave the lamb to rest, covered, for 30 mins, then slice and sprinkle over the crumbs.

RECIPE TIPS
SIMPLE SWAP

If you don’t like the peppery flavour of watercress, swap it out for the same quantity of soft herbs, such as flat-leaf parsley.

Goes well with

Recipe from Good Food magazine, April 2020

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A star rating of 4 out of 5.4 ratings
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