In a large pot, bring the water to a boil.
Gradually whisk in the cornmeal, stirring constantly to prevent lumps.
Reduce the heat to low and cook, stirring frequently, until the mixture thickens and the cornmeal is fully cooked, about 15-20 minutes.
Stir in the milk, butter, and salt. If using sugar, add it now. Mix well until the butter is melted and the mixture is smooth.
Continue to cook for another 5-10 minutes, stirring occasionally, until the Lafidi reaches your desired consistency.
Garnish with fresh herbs or cheese if desired.
Enjoy your meal!