Place walnuts in a medium bowl and fill with enough water to cover by 1 inch.
Cover and set aside.
Soak at room temperature at least 1 hour or up to 12 hours for easy blending.
Drain walnuts; rinse thoroughly.
In a blender combine walnuts, 3 cups water, honey, vanilla, and salt; blend on low until very smooth, at least 2 minutes.
Serve immediately or store in the refrigerator for up to 5 days.
* For a smoother milk, strain with a cheesecloth. *