Combine 1 cup oats, 4 cups water, and pinch of salt to a blender. Allow the ingredients to sit for 10 minutes before blending.
Blend on high for 30 seconds. Strain immediently though a fine mesh strainer, cheese cloth, or a nut milk bag. Do NOT squeeze the oat milk, let it drain naturally. Squeezing the oat milk will cause it to get slimy.
Use as you would regular milk: pour over cereal, use in baked goods, or add to savory recipes for a hint of creaminess.