Step 1

Stir together sugar, cocoa, cornstarch and salt in medium saucepan; gradually stir in milk.

Step 2

Cook over medium heat, stirring constantly, until mixture boils; boil and stir for 1 minute. Remove from heat; stir in butter and vanilla. Pour into individual dessert dishes. To avoid a skin from forming on top, press the plastic wrap directly onto surface; serve warm or refrigerate for at least 2 hours. Garnish with whipped topping, if desired. Makes 4 servings.