I was going to use oat milk for ALL of the liquid, but as soon as I added the lye to the oat milk, it turned into a thick gel! I waited a little bit to see if it would turn liquid, but it didn't...so I started over with a new lye solution using water, and added the oat milk after I combined the oils with the water/lye solution. Not sure why the gel-thing happened...but no problems at all when adding the oat milk later.
oat milk and honey bars:
For additives, I used honey. I normally add ground (colloidal) oatmeal, but skipped it this time because I want to see how the bar feels using the oat milk.