Creamy Vanilla Milk Pudding

1.In a medium saucepan, combine the whole milk, granulated sugar, cornstarch, and salt. Whisk together until the cornstarch is fully dissolved and there are no lumps.

2.Place the saucepan over medium heat and continue to whisk constantly until the mixture begins to thicken and bubble, about 5-7 minutes. Look for a smooth, creamy consistency.

3.Once the pudding has thickened, remove it from the heat and stir in the pure vanilla extract and unsalted butter (if using) until fully incorporated.

4.Pour the pudding into individual serving dishes or a large bowl. Cover with plastic wrap, pressing it directly onto the surface of the pudding to prevent a skin from forming.

5.Refrigerate the pudding for at least 15 minutes to cool and set before serving.