Mix all of the ingredients together and store in the fridge overnight.
Stir well before serving.
Add your additional ingredients either the night before or in the morning when ready to eat.
I tend to add in the morning, as the oats will last up to 3 days without the toppings.
If you want to save time, and plan to eat after just one night, adding the night before is fine.
Note 1 - Nutritional Value
The Nutritional Value shown related to the basic 3 Ingredient Overnight Oats before toppings are added.