how to cook a lamb roast in a slow cooker
Method. 1  STEP 1 Halve potatoes if they are large, and place in slow cooker pot. 2  STEP 2 Make incisions in roast and press in garlic and rosemary. 3  STEP 3 Place roast on top of potatoes. 4  STEP 4 Add stock and bay leaves to bottom of pot. 5  STEP 5 Cook on high for 4-6 hours until meat is cooked. STEP 1 Halve potatoes if they are large, and place in slow cooker pot. 2  STEP 2 Make incisions in roast and press in garlic and rosemary. 3  Place any loose rosemary leaves in pot. 4  STEP 3 Place roast on top of potatoes. 5  STEP 4 Add stock and bay leaves to bottom of pot. 6  Roast should sit just above the liquids.