Combine the oats, water, maple syrup, vanilla, and salt in a blender and blend for 30 seconds.

Place a fine mesh strainer over a large bowl and strain the milk without pushing any excess pulp through the strainer. This will create a creamier texture that’s not gritty or gummy.

Add more maple syrup, to taste, if desired. Chill overnight. If you want to drink your oat milk right away, I recommend adding ice - it's flavor is best when well chilled.