Place the couscous in a glass or ceramic mixing bowl.

In a medium saucepan, bring the chicken stock or water and butter to a boil. Pour over the couscous and cover the mixing bowl with plastic wrap or aluminum foil. Set aside and let stand 5 minutes. Fluff with a fork, then add the butter and salt and pepper, to taste, and set aside while butter melts. Serve hot with Moroccan Chicken, if desired.