My first encounter with focaccia was during one of my frequent trips to Italy. After a long and exciting morning of scuba diving on the Ligurian coast the skipper offered us some delicious greasy flatbread sprinkled with salt and black olives. Until today a bite of focaccia evokes that precious moment. Caffè Petrucci brought back this memory recently, along with that unmistakable la dolce vita feeling. A reminder of the popular Bar Centrale at the heart of every Italian town. The bright café on…