A proper outdoor roast. This butterflied leg of lamb is marinated with garlic, rosemary, lemon and olive oil, then slow-cooked on the COBB until tender and full of flavour. It’s an easy one to serve with vegetables, potatoes or whatever sides you love most.
Raw materials
| Crushed garlic | 3 tbsp |
| Finely chopped rosemary | 1 tbsp |
| Olive oil | u00bd cup |
| Lemon juice | u00bd cup |
| Coarse salt | 2 tbsp |
| Ground black pepper | 1 tbsp |
| Lemon zest | 1 tsp |
| Leg of Lamb | 2 kg |
Hardware
COBB Grill
Griddle+
Fenced Roast Rack
Execution protocol
01
MAKE THE MARINADE
In a small bowl, whisk together the garlic, rosemary, olive oil, lemon juice, salt, pepper and lemon zest.
02
PREP THE LAMB
Pour half of the marinade over the lamb, then tie it together with string.
03
MARINATE
Place the lamb in a resealable plastic bag. Pour in the remaining marinade, coat well and leave to marinate for 1 hour.
04
LIGHT THE COBB
Light 1 CobbleStone and wait until it has stopped smoking. Add the Griddle+, Fenced Roast Rack and Dome, then preheat for 5 minutes.
05
WRAP AND BASTE
Remove the lamb from the bag and place it on foil. Before wrapping, baste it with the marinade from the bag.
06
START THE ROAST
Place the wrapped lamb on the COBB. Cook for 30 minutes per 500 g of lamb.
07
UNWRAP AND SAVE THE JUICES
Once the lamb has cooked for the allocated time, unwrap the foil and pour the cooking juices into a bowl. Use this as a gravy for the lamb or vegetables.
08
FINISH UNDER THE DOME
Place the lamb back on the COBB, cover with the Dome and cook for another 20u201330 minutes.
09
REST THE LAMB
Remove the lamb from the COBB and place it on a cutting board. Let it rest for 10 minutes.
10
CARVE AND SERVE
Carve the lamb and serve with vegetables or your favourite sides.
Recipe overview
A simple, flavour-packed lamb roast made with a garlic, lemon and rosemary marinade. The lamb is first wrapped in foil to cook gently, then finished uncovered under the Dome for extra colour and flavour.
Bath Temp
130u00b0F
Target Doneness
Medium-rare
Validated — repeatable results