This Moroccan stew recipe is rich in nuts and spices and sweetened with currants. To make it in advance, just cook the spices and chop the vegetables the night before. Refrigerate in the crock overnight, then start it in the morning. Serve with couscous and a dollop of plain yogurt. Prep and Cook Time: about 40 minutes, plus 8 to 9 hours in the slow-cooker.