Slow roasted harissa lamb shoulder recipe

(442 ratings)

Our harissa lamb shoulder is a one-pan roast that is packed with flavour. Slow cooking the meat makes it so tender and allows the flavours to develop.

Preparation Time30 mins
Cooking Time4 hours
Total Time4 hours 30 mins
Nutrition Per PortionRDA
Calories805 Kcal40%
Sugar8.2 g9%
Fat58.2 g83%
Saturated Fat26.5 g133%
Salt0.87 gRow 4 - Cell 2
Protein43.5 g87%
Carbohydrates26.4 g10%
Salt0.87 gRow 7 - Cell 2

Our harissa lamb shoulder makes for a tender and flavourful joint of meat that is served with potatoes for a crowd-pleasing one-tray roast. Lamb shoulder is a great cut for feeding a crowd on a budget, and the delicious juices give the potatoes and fennel a superb flavour boost. Harissa lamb shoulder uses harissa paste, a middle eastern ingredient made from roasted peppers and spices, to give a depth of flavour and spicy kick to the meat.


  • 1 whole lamb shoulder, weighing approximately 2.2-4kg
  • 3 preserved lemons, centres scooped out and discarded, skin roughly chopped
  • 4tbsp harissa paste
  • 4 shallots, peeled and halved
  • 200ml white wine
  • 1.2kg new potatoes, peeled and halved
  • 2 bulbs fennel, quartered
  • chopped parsley, to serve

For the pickle:

  • 80ml vinegar
  • 50g sugar
  • 300g radishes, halved
  • 3 fronds of dill




  1. Preheat the oven to 200C. For the lamb: blitz together the preserved lemons and harissa paste in a spice blender, to form a rough paste. Cut incisions in the lamb and spread over the paste. Leave to marinate for at least an hour or overnight.
  2. Put the shallots, wine and 125ml water in a roasting dish. Sit the lamb on top, tucking the shallots underneath. Cover with foil and roast for 20 mins, then turn down the oven to 150C and cook for a further 3 hours.
  3. An hour before the end, add the new potatoes and fennel to the lamb in the roasting tin, making sure they all have a good glaze of the lamb juices. Return to the oven, cover with foil, and cook for the final hour.
  4. For the pickle: heat the vinegar and sugar, add the radishes and dill and leave to stand for 30 mins.
  5. Carve the harissa lamb shoulder and serve, topped with the chopped parsley, with the potatoes, fennel and pickle.
Jessica Dady
Food Editor

Jessica Dady is Food Editor at GoodtoKnow and has over 12 years of experience as a digital editor, specialising in all things food, recipes, and SEO. From the must-buy seasonal food hampers and advent calendars for Christmas to the family-friendly air fryers that’ll make dinner time a breeze, Jessica loves trying and testing various food products to find the best of the best for the busy parents among us. Over the years of working with GoodtoKnow, Jessica has had the privilege of working alongside Future’s Test Kitchen to create exclusive videos - as well as writing, testing, and shooting her own recipes. When she’s not embracing the great outdoors with her family at the weekends, Jessica enjoys baking up a storm in the kitchen with her favourite bakes being chocolate chip cookies, cupcakes, and a tray of gooey chocolate brownies