To get the same effect, add a tablespoon or two of cream to regular whole milk. Do not make rice pudding or bread pudding with skim milk. The flavors come off wrong and the smoothness doesn't develop properly.
Raisins are optional.
If you do use raisins, use the yellow ones, for a more harmonious appearance and softer taste. Combine rice, water, and salt in saucepan and simmer 3 minutes. Add sugar and milk and bring to a slow simmer over low heat, stirring occasionally. I stir constantly, same as for risotto or custards, to prevent sticking. Soak raisins in water until they are plump.