Add all ingredients to to a 4 to 6 quart slow cooker and stir.
Cover and cook on LOW for 4 to 6 hours or 2 to 3 hours on HIGH, stirring every hour or so while cooking.
After cooking taste oatmeal and add additional honey or sweetener of your choice to sweeten to your taste preference.
Notes
If you don't want to stir the oatmeal while cooking you can add 1 additional cup of water (for a total of 4 cups of water). The oatmeal will be a little bit mushier but will still taste amazing!