“Milk works as a good marinade too.”
Buttermilk is wayyyy better.
Tried an experiment where I marinated chicken in pickle juice (heard it was great) and some in buttermilk. Buttermilk was fabulous.
I think it has to do with enzymes, and good ‘gut bugs’:
http://theelliotthomestead.com/2014/01/buttermilk-superfood/