Grease your crockpot with butter. Add all of the ingredients, except for the raisins and butter, and stir everything together.
Place the butter on top of the rice mixture, then place the lid on the slow cooker and set on high for 3-4 hours.
Stir the pudding after 2 hours, then again at 3 hours. If you'd like a thicker texture, let it cook for the remaining time. Once done, stir in the raisins, sprinkle with cinnamon, then allow to cool before serving.
Notes
Click on the time in the instructions to start a timer! StorageRefrigerate for 2-3 days in an airtight container.Freeze for 2-3 months in a freezer-safe container. The texture of the rice pudding may change once frozen.Cooking Tips
You can serve the rice pudding warm, but a lot of people will refrigerate it for an hour or so first and serve it cold.
Check the pudding at the 3 hour mark and give it a stir. If you want the pudding to be more creamy, let it cook for longer, until it thickens to the desired consistency.
The type of rice does make a difference, so don't substitute for a different one.
The pudding mixture can stick to the crockpot, so I recommend greasing it with butter or non-stick cooking spray beforehand.
If your rice pudding turned out too thick, you can add a bit of milk and stir until completely combined.