In a large bowl, combine the cooked Arborio rice, sugar, cream, vanilla, cinnamon and nutmeg, and mix until well combined.
Transfer the mixture to a medium saucepan and cook over medium heat, stirring occasionally, for 20-25 minutes, or until the mixture has thickened and the Arborio rice is tender.
Stir in the raisins, if using, and cook for an additional 3-5 minutes.
Serve the pudding warm or cold, topped with a sprinkle of cinnamon.
Interesting Facts
Arborio rice is a short-grain Italian rice that is traditionally used to make risotto.
Rice pudding is a popular dessert in many countries, including Italy, Greece, Germany, and India.
Rice pudding can be served warm or cold, and can be flavored with a variety of ingredients like cinnamon, nutmeg, and dried fruits.