1. You'll need four 6-oz dessert glasses. Prepare pudding as package directs, using milk. After cooking, scrape into a medium bowl and press plastic wrap directly onto surface of pudding. Refrigerate pudding until cold, at least 1 hour.
2. To make parfaits: Put 1/4 cup pudding into each glass. Top each with 2 tablespoon nondairy whipped topping, then crumble 1/2 a cookie onto each. Top with 1/4 cup more pudding and 2 tablespoon topping. Garnish if desired.