Looks good. Never tried it with water mind you.
You can just use regular milk with some malt vinegar or lemon juice if you don’t have buttermilk. It doesn’t affect the flavour in my experience.
I did a post a while back with my recipe for what it’s worth.












Update:
There were only 2. I unplugged the aux cable but left the USB to aux in and the mic is still tied to it unfortunately.
Thanks for your help. Looks like I’m a little goosed.