Add oats, water (the lesser range will yield thicker, creamier milk, the higher range will yield thinner milk), salt, and any additional add-ins (optional) to a high-speed blender.
Top with lid and cover with a towel to ensure it doesn't splash.
Blend for about 30 seconds – 1 minute or until the mixture seems well combined. It doesn't have to be 100% pulverized.
Scoop out a small sample with a spoon to test flavor/sweetness. If it's not sweet enough, add more dates.
Pour the mixture over a large mixing bowl or pitcher covered with a very thin towel or a clean T-shirt.
Transfer to a sealed container and refrigerate. Will keep in the refrigerator up to 5 days (sometimes more). Shake well and enjoy cold. DO NOT HEAT or it will thicken and become gelatinous in texture.
