1. Combine the cornstarch with the fat free milk in a medium saucepan and whisk thoroughly to dissolve the cornstarch. 2. Add the sweetened condensed milk, salt and tapioca to the pan. Stir until smooth and then set the pan aside for 5 minutes. 3. After 5 minutes, bring the mixture to a boil over medium low heat, stirring constantly until it thickens, then cover and remove from heat. Let the pudding sit, covered, for 20 minutes. 4. Stir in the vanilla, then transfer the pudding to serving cups. Cover the cups with plastic wrap and let them chill for at least 2 to 3 hours before serving. ---------------------------------------------------------------------------
