Summertime is iced coffee time, and for some, it's when finding good iced coffee takes on the form of a quest. Cold brewed iced coffee (recipe here), with coffee iced cubes thrown in, seems to be the culmination of all the perennial "perfect cup" stories. A handful of spots along Flatbush Avenue in Midwood serve coffee that has been strained from a mixture of cold water and ground beans, and iced coffees aren't offered with......