1In a medium saucepan, whisk together the sugar, cocoa powder, cornstarch, and salt.
Gradually whisk in the milk until the mixture is smooth.
Place the saucepan over medium heat and cook, stirring constantly, until the mixture comes to a boil and thickens, about 5-7 minutes.
Remove the saucepan from the heat and stir in the vanilla extract.
Pour the pudding into individual serving dishes.
Let the pudding cool to room temperature, then refrigerate for at least 2 hours before serving.
Serve chilled and enjoy your Classic Chocolate Pudding!