The latest invention by junk food genius Dominique Ansel is about to change everything—again. The baker’s Island of Dr. Moreau-like New York eatery first rose to fame as the home of the pastry mash-up, “the Cronut,” but at Austin’s SXSW festival, Anel’s debuting his new earth-shattering creation—a small “glass” made from cookies that holds a shot of cold milk. For those that want to be part of the revolution, the cookie-and-milk shots will soon be available at the Dominique Ansel Bakery in New York …