Place the oats, water, vanilla, salt, and any optional add-ins, into a high-speed blender. Blend on medium speed for 45 seconds.
Pour the oat milk into a nut milk bag or double lined cheesecloth, placed over a bowl. Squeeze the oatmilk out of the nut milk bag. Pour into a sealable jar and store in the fridge for up to 5-7 days, although I doubt it'll last that long! ENJOY!
Be sure not to over-blend, as this can lead to slimy/chalky milk. To turn this creamer into regular oat milk, simply add 1 ½-2 cups additional water, until you've reached your desired consistency.