Virgin olive oil of the Somontano Food and drink · Peraltilla, Somontano de Barbastro, Huesca Image of Peraltilla, not of the place itself. The dry-farmed olive groves on the comarca's slopes give a greenish, slightly bitter oil that is milled between November and January; the new oil is tasted on toasted bread with garlic in the mills themselves. Photo: Kom bo (CC BY 2.0) What to see and do in Peraltilla