Add all the ingredients into a sealable jar or bowl and give it a stir until it's all combined.
Close jar and refrigerate for at least 4 hours. It is best to soak overnight for 8 hours for a creamier consistency.
Remove from the refrigerator in the morning and stir. If the oats look dry, you can add a splash of milk before serving.
Top oats with banana slices, nuts and/or chocolate chips, or any other toppings you like.