ANNE'S MODIFICATIONS: use 1 tsp homemade garam masala to replace spices (contained the same spices), omitted nuts, used raisins instead of currants, added 1 peeled, sliced carrot & 1 sliced celery stalk. Stir fried carrot and celery in butter with spices for 4 minutes. Toast and chop cashews or pistachios. Melt quarter c butter in medium saucepan over low heat. Add spices and cook 2 minutes, stirring occasionally. Add stock and currants. Can be prepared 4 hours ahead. Bring to boil. Mix in couscous and 2 T butter. Cover and remove from heat. Let stand 5 minutes. Fluff with fork; season with salt. Transfer couscous to bowl, add nuts and toss well.