In a medium pot bring water, salt and butter to a boil.
Bring heat down to medium and add the quick oats, sugar and cinnamon. Stir and allow to simmer for 2 minutes.
Add milk (or cream) to the pot and stir well. Allow to simmer for 1-2 minutes more or until desired thickness is reached. (NOTE: If it gets too thick, feel free to add more water or milk)
Divide the oatmeal among 4 bowls. Top each bowl with desired amount of raisins.
The oatmeal will continue to thicken as it stands.