Combine the oats with enough water to cover in a medium bowl. Soak the oats, refrigerated, to soften, at least 6 hours and up to overnight.
Drain and rinse the oats very well to remove any residue. Combine the oats with 3 cups fresh water in a blender. Blend on high until the oats are completely pulverized, 2 to 3 minutes. Strain the oat milk through a fine-mesh strainer or cheesecloth into a container. (Save the oat pulp for smoothies or to use in baked goods.) Whisk in the maple syrup, vanilla and 1/4 teaspoon salt. Store the oat milk in an airtight container in the refrigerator for up to 5 days.
Copyright 2018 Television Food Network, G.P. All rights reserved.