For the at-home non-dairy milk-maker, there are a plethora of milks to be made.
What's specifically great about oat milk: creaminess, nuetral taste (which makes it fantastic for cooking), and actual fiber content because the oats are not strained out.  Add in the miso, which supplies B-12 and the digestive benefits of fermentation, and you've got some damn fine non-dairy milk.    
But shake before serving!  It keeps well, but separates quickly and looks kind of weird--  Give it a shake and it's creamy and perfect all over again.

Prep Time:  10 minutes
Cooking Time:  none
Servings:  Varied
Ingredients:
3 Cups Very Hot Water
1 Cup Rolled Oats
2 Tsp Sweet White or Barley Miso

Combine all ingredients in a container with a lid, being sure that miso is dissolved.  Cover tightly and refrigerate overnight.  In the morning, blend until smooth in a blender or food processor.  Keeps for one week.  Always shake before serving.