Chickpea, Celery, and Porcini Soup with Pecorino Cheese

This fine recipe employs the same cooking method described in the preceding recipe, with the addition of orégano, celery, and porcini, an extra swirl of fresh fruity olive oil, and a few curls of pecorino cheese added just before serving. It was inspired by a soup served at the restaurant Oasis in the mountains of Irpinia in Campania. Members of the Fischetti family, who run the restaurant, are adamant about preserving the old culinary traditions of their region. In fact, the motto of the r