Slow roast lamb shoulder and lamb fat potatoes

5.00

This roast lamb shoulder is the perfect star of a Sunday lunch. The shoulder is slow roasted for three and a half hours until tender, and scented with cumin and fennel. The crispy roast potatoes and charred spring vegetables are the perfect accompaniment. This recipe is taken from The Changing Tides by Roberta Hall McCarron (£25, Kitchen Press). Photography by Rebecca Dickson.

First published in 2025

Rebecca says: 'One of my favourite parts of this dish is the potatoes – they taste incredible cooked in the fat that’s dripped from the shoulder!'

Ingredients

Metric

Imperial

Lamb shoulder

Lamb fat potatoes

Black garlic yoghurt

  • 50g of black garlic paste
  • 200g of yoghurt
  • 1 pinch of salt

Charred greens

Method

1

Preheat your oven to 165°C fan

2

Drizzle the lamb with the sunflower oil, then sprinkle the cumin and fennel seeds and sea salt all over it

3

Place the chopped celery, carrots and onion in the bottom of a roasting tray with the bay leaves and thyme

4

Cut the garlic bulb in half across and add it to the veg, then pop the lamb shoulder on top and cover with tin foil

5

Cook for 2½ hours, then take off the tin foil and cook for another hour, until the meat is tender and falling off the bone

6

Whilst the lamb is cooking you can organise your potatoes. Peel and cut them to whatever size you like your roasties

7

Place them in a pot, cover with cold water and add the tablespoon of fine salt. Bring them to the boil over a medium heat and cook for 10 minutes, until the outside is cooked but they’re still a little hard in the middle

8

Drain off the water and put them back in the pot, put the lid on and shake them around so they get a little bashed

9

Take the lamb out of the roasting tin and set it aside to rest

10

Turn the oven up to 200°C fan

11

Use a slotted spoon to remove the veg from the roasting tin, leaving behind as much of the fat that has dripped out of the lamb as you can

12

Put the tin back in the oven for 5 minutes to get the fat nice and hot, then carefully add the parboiled potatoes and roll them around so they’re covered in fat

13

Roast the potatoes for 30 minutes, until golden and crispy, turning them every 10 minutes or so

14

Mix the black garlic paste, yoghurt and salt together. Taste and add more salt if required, then set aside at room temperature

  • 50g of black garlic paste
  • 200g of yoghurt
  • 1 pinch of salt
15

Just before you’re ready to eat, do the charred greens. Fill a pot with water and enough salt that it tastes like the sea and bring to a boil

16

Blanch the green beans and sugar snaps for 3 minutes, then drain and pat the vegetables dry

17

In a large frying pan, heat the sunflower oil so it’s hot, then add the sugar snaps and green beans and sauté for 30 seconds

  • 1 tsp sunflower oil
18

Add in the wild garlic and wild leeks and cook for another 30 seconds, keeping the pan moving, until they’ve wilted down

19

Mix the lemon juice and olive oil together and dress the greens

20

Put the potatoes on to your serving dish and place the lamb shoulder on top, then scatter the dressed greens around the edges

First published in 2025

Roberta Hall-McCarron spent the early part of her career under the wing of Tom Kitchin but has since gone on to carve a path of her own, opening the acclaimed The Little Chartroom in Edinburgh, where her bold, seasonal food brings Scotland’s natural larder to the forefront.

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