As a macchiato devotee for many years, I have a few ideas on what a true version of the drink should be. It's one of those espresso drinks that's often misunderstood, even amongst Starbucks baristas. Depending on location, there's about a 50/50 chance of having to very politely request a re-do. The first thing to realize is that an authentic Italian macchiato consists of merely 2 espresso shots "marked" with a dash of frothy milk -- thus the name "macchiato," which means "marked" or "stained" in Italian. There's no caramel in the equation… But Starbucks has its own interpretations of...