Nescafé Milk Pudding

In a saucepan, mix Nescafé, sugar, and cornstarch.
Gradually add milk while stirring to avoid lumps.
Place the saucepan over medium heat, stirring constantly until the mixture thickens and begins to boil.
Remove from heat, stir in vanilla extract, and pour into serving dishes.
Let it cool at room temperature, then refrigerate until set.