Add all of the ingredients to the slow cooker except for the chickpeas, coriander stalks, corn flour and water.
Mix together and cook on high for 4-5 hours or low for 6-8 hours until the meat is tender.
Add in chickpeas and coriander stalks 1 hour before serving.
After 1 hour, taste the sauce and season with salt and pepper.
Before serving, combine the corn flour and water to create a slurry. Stir into the Moroccan lamb to thicken the sauce.
Serve on top of couscous with fresh coriander and a dollop of yoghurt.