If I may ...
How about for the OP .... Does anyone have a milking cow that the OP could bring a bucket, and a short three legged stool, to sit aside said milking cow so the OP could squeeze and pull some teets to fill the bucket for the amount needed to test a recipe? Or, is there anyone with a milking cow that would give a lesson on milking a cow that will allow the OP to take home what was milked? Pretty sure this bypasses any tyrannically laws written by, and for the sole support of, big agriculture corporations.