Mix all ingredients together and store in the fridge in a covered container.
Let it sit covered in the fridge, for at least an hour but ideally overnight.
Remove from the fridge, stir well, and enjoy.
I prefer to use rolled oats, but you can substitute any type of oatmeal it its place. I also prefer to use unsweetened, unflavored oat milk, and then a flavored plant-based yogurt while making this recipe. You can store this in the fridge for up to five days in a covered container.