1. Combine the milk, sugar, rice and salt in a large saucepan. Over medium to low heat, cook the mixture while stirring constantly until it starts to boil. Resist the urge to turn the heat up to make it boil faster. It needs to come up to a slow boil.

2. After the mixture has come to a boil, pour it into a buttered 1 1/2 quart baking dish. Cover it with foil and place into your pre-heated 325 degree oven. Bake for 45 minutes, stirring every 15 minutes. At the end of 45 minutes, add the raisins and vanilla. Bake another 15 minutes until the rice is tender. Sprinkle with cinnamon, serve warm or chilled.