As far as I remember, you were dreaming! LOL! I would say that 99% of them aren't made with skim milk, so I can't imagine what would have been Core. WW has a shake that you can make yourself, or making one in the blender with ice, skim milk, and fruit works to. It's also a good way to sneak in some healthy oil by putting it in the blender too, but you have to drink the shake right away.