In a large pot, bring the water to a boil. Add salt.
Gradually whisk the cornmeal into the boiling water to avoid lumps.
Reduce the heat to low and continue to stir frequently. Cook the cornmeal mixture for about 30-40 minutes, or until it thickens and pulls away from the sides of the pot. Stir occasionally to prevent sticking.
If desired, stir in the butter and grated cheese for added flavor.
Once cooked, pour the mămăligă into a dish and let it cool slightly before slicing. It can be served warm or at room temperature.
Enjoy your meal!