Let me try to describe it.  You open your mouth to take a taste, but it is like swallowing a thick river.  Then you remember to sip, and the maneuver works.  It is chocolate, but more so, in a cafe crowded for the weather, customers lined up for “hugs in mugs” ( TM) and hot mocha.  I order two thin chocolate lemon peels, thinking of espresso.  The taste complements, tart sweet.  Actually, that is almost the name of a smoothie here, made with beets, cukes, and more good things.  An eleven-year-old in this sweet shop orders it ; bless him.