Buttermilf is a much sought after delicacy, ripened to the point of perfection, often vigorously applied, or massaged to meats before cooking. Obtained by "Milking" a milf whilst still in the lactating phase of rearing. Careful sampling must be conducted by a master chef strait from the teat prior to collection. Often used in French restaurants on pastries and sausage.
“The master chef handled the milfsteats delicately, feeling for ripeness. Upon further taste testing he decided the milk was too yeasty for consumption. This was not the milf to collect buttermilf from.”