|Alternative names||Pistou sauce|
|Place of origin||France|
|Region or state||Provence|
Pistou (Provençal: pisto (classical) or pistou (Mistralian), pronounced [ˈpistu]), or pistou sauce, is a Provençal cold sauce made from cloves of garlic, fresh basil, and olive oil. It is somewhat similar to the Ligurian sauce pesto, although it lacks pine nuts. Some modern versions of the recipe include grated parmesan, pecorino, or similar hard cheeses.
In the Provençal dialect of Occitan, pistou means "pounded".[better source needed]
The sauce is similar to Genoese pesto, which is traditionally made of garlic, basil, pine nuts, grated Sardinian pecorino, and olive oil, crushed and mixed together with a mortar and pestle. The key difference between pistou and pesto is the absence of pine nuts in pistou.
Pistou is a typical condiment from the Provence region of France most often associated with the Provençal dish soupe au pistou, which resembles minestrone and may include white beans, green beans, tomatoes, summer squash, potatoes, and pasta. The pistou is incorporated into the soup just before serving.
Gruyère cheese is used in Nice. Some regions substitute Parmesan cheese or Comté. In Liguria, pecorino, a hard sheep's-milk cheese from Sardinia or Corsica is used. Whatever cheese is used, a "stringy" cheese is not preferred, so that when it melts in a hot liquid (like in the pistou soup, for instance), it does not melt into long strands.
In the Provençal dialect, pistou means 'pounded.'
It seems undoubtedly to have come from across the border from Italy, deriving from a Genoese sauce called pesto ... [made] by using a pestle and mortar to mash together leaves of sweet basil, Sardinian sheep's milk cheese, butter, garlic, and olive oil ... The Nice formula ... uses cheese of the Gruyère type.
The soup in which the pistou is placed, giving it its flavor and its name, is a form of minestrone. One Nice recipe gives the vegetables that go into it as white beans, tomatoes, and summer squash. Another names string beans, potatoes, tomatoes, and vermicelli [Into the soup] you put the pistou ... at the very last moment.