Slow-cooked Shoulder of Lamb with Harissa and Green Polenta

01 Apr 2022

Slow-cooked Shoulder of Lamb with Harissa and Green Polenta

4 Hours 10 Minutes | easy | Serves 4

Light two gas burners on the Jupiter Outback BBQ and set the heat to medium, then close the lid. You are looking for a temperature of around 160C.

Place the lemon wedges and onion slices into a roasting tin just large enough to comfortably hold the lamb. Make cuts all over the lamb, to allow the harissa to penetrate. Rub the lamb shoulder with the harissa and season with salt. Place the lamb in the roasting tin.


  • 1 x 1/2 lamb shoulder
  • 4 tablespoons harissa
  • 1 bulb garlic, cloves separated but unpeeled
  • 1 onion, peeled and cut into thick slices
  • 150g coarse polenta or cornmeal
  • 750ml chicken or vegetable stock
  • 20g unsalted butter
  • 1 handful coriander leaves, finely chopped
  • 1 handful mint leaves, finely chopped
  • 25g Parmesan, grated



Place the lamb on the grill

Place the lamb on the grill on the opposite side to the fire, and close the lid. Cook for 4 hours, or until the meat is tender and can be shredded with a fork.

Recipe Image


Make the polenta

In the final hour of cooking, make the polenta. Combine the cornmeal, water, butter and some salt in a heatproof dish with a lid. Put the lid on and place next to the lamb. Cook for 45 minutes to an hour, or until creamy and tender.

Recipe Image


Remove the lid and stir

Remove the lid and stir in the Parmesan and herbs. Check the seasoning and adjust if necessary, then serve with the pulled lamb and the lamb juices.

Recipe Image

Recipe Author

Recipe Author

Helen Graves

Helen Graves is an award-winning recipe, food and travel writer with a particular interest in barbecue. She writes freelance for many major food and drink publications and is editor of Pit, the UK's first independent magazine about live-fire cooking. Helen has created a series of exclusive recipes for Outback that focus on maximising flavour for the home cook using lots of spices, fresh herbs and BBQ techniques.

Latest Recipes

Start Shopping Now!


Create The Ultimate Outdoor Dining Experience

With all Outback barbecues, quality is built in. Choose from exceptional charcoal barbecues and stunning firepits or create the ultimate dining experience with a 4 burner or 6 burner barbecue, in eye-catching stainless steel. With Outback it’s so easy to enjoy the outdoors season after season.

With premium barbecues and stunning, summer-and-beyond firepits, Outback has a range that includes some of the world’s most trusted products for the best in outdoor living.

View products
Outback Barbecues