The last "milk" brew I had was Dragon's Milk Ale at a Binny's beer tasting party.  It was fantastic.  I actually thought I detected some chocolate in there.  It's expensive and may be hard to find in some parts of the country, but it is worth the hunt.

It's also a 10% drink, so it can sneak up on you if you are lucky enough to have 3 or 4 of them.

  KNEEL BEFORE YOUR NEW SLEESTAK MASTERS.