How to make it: Soak one cup of raw almonds in enough water to cover them and soak for a minimum of four hours, or ideally overnight. Drain almonds and blend in a blender with four cups of water until smooth, about one minute. Strain and serve. You can refrigerate in a covered container for up to three days.
http://www.koraorganics.com/blog/how-to-make-almond-milk/