Rinse the rice under cold water until the water runs clear. This helps remove excess starch and prevents the pudding from becoming too thick.
In your slow cooker, combine the rinsed rice, milk, sugar, vanilla extract, and ground cinnamon. Stir well to mix all the ingredients evenly.
Cover and cook on low for 4-5 hours, stirring occasionally to prevent the rice from sticking to the bottom. The pudding should be creamy and the rice fully tender.
Once the rice pudding is cooked, give it a good stir. Serve warm, sprinkled with a little extra cinnamon if desired, and enjoy a comforting, creamy dessert!
Enjoy!