Drain cashews and add them to your blender with the water and your sweetener of choice, if using, and puree until smooth.
Using your Bigger & Better Nut Milk Bag, (or equivalent) strain the milk into a jug to remove any loose pieces and pulp so that you're left with smooth and creamy, perfect cashew milk.
Notes
Store in your refrigerator in a covered container or lidded jug. Consume within 5 days.