Spray the inside of a 4 to 6-quart crockpot with nonstick cooking spray or rub with coconut oil or butter.
Add ingredients to crockpot and stir to combine.
Cook on low, covered, for 7-8 hours (overnight is perfect!) or on high for 4 hours, until the oats are tender and the water is absorbed.
Stir and serve warm with desired toppings.
Video
Notes
Makes 6 cups (serving size 1 cup).
Recipe can be doubled. We don’t recommend halving the recipe unless you have a smaller size slow cooker.
We found the oatmeal cooked best (and didn’t burn) when we added additional ingredients after it was done cooking. We tested this many, many times!
Optional Toppings: Milk, fresh fruit, dried fruit, nut butters (peanut butter, for example), or spices (cinnamon, apple pie spice, pumpkin pie spice, etc.). Ground flaxseed, chia seeds, or hemp seeds add great nutrition.