milk vetch

You can even buy containers of their Cereal Milk in select stores.

And right after that, some nice sour milk would come splashing down into the trough of the pen.

As soon as he was in it Squinty ran over to the trough, hoping there would be some sour milk in it.

He watched the man put some bread and milk in a tin pan, and set it down on the floor of the basket.

"Getting back home," answered Squinty, as he took a big drink of sour milk.

And Squinty thought acorns were just the best things he had ever tasted, except apples, and potatoes or perhaps sour milk.