Marietta Square Gem Piastra On a beautiful Tuesday night in the Marietta Square I was able to take part in a wonderful wine and food pairing. In the heart of the Marietta Square, Piastra Restaurant is one of those hidden gems. I have been to the Marietta Square many times and have never been to the restaurant until that day thanks to Culinary Local.   I felt that I was a VIP with all of the participants of the Italian Varietal Dinner were in a separate room off to the back. I met Chef Greg and the representative from Cliffhanger Wines and they both are/were a wealth of information. Chef…