I get the question all the time: I’m visiting Chicago for the first time, where are some restaurants I shouldn’t miss? Almost always, I’d include The Purple Pig on that list. First opened on Michigan Avenue in 2009, The Purple Pig was a product of the mid-2000’s nose-to-tail boom: Places like Mado, The Publican were curing their own meats, making cheese a centerpiece of their menu, and utilizing every loose end of a pig and cow. The Purple Pig, …