Pesto
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Pesto (Template:IPA), also known as pesto genovese, is an Italian paste made with basil leaves, extra virgin olive oil, Parmesan (alternatively Grana Padano), pecorino sardo, pine nuts, and garlic.<ref>Template:Cite web</ref><ref name="CMPM">Template:Cite web</ref> It originated in the Ligurian city of Genoa and is used to dress pasta.<ref name="itchefs">Template:Cite web</ref>
Etymology
The name pesto is the past participle of the Genoese verb Template:Lang (Italian: Template:Lang), meaning 'to pound', 'to crush': the ingredients are "crushed" or ground in a marble mortar through a circular motion of a wooden pestle. The same Latin root is the basis for pestle.<ref>Template:Cite web</ref> There are other foods called pesto, but pesto by itself usually means pesto alla genovese.<ref>Template:Cite book</ref>
History
Pesto is thought to have had two predecessors in ancient times, going back as far as the Roman age. The ancient Romans used to eat a similar paste called Template:Lang, which was made by crushing garlic, salt, cheese, herbs, olive oil, and vinegar (and sometimes pine nuts) together.<ref name="itchefs"/><ref name="appendix">Template:Cite web</ref> The use of this paste in the Roman cuisine is mentioned in the Template:Lang, an ancient collection of poems in which the author details the preparation of Template:Lang.<ref name=appendix/> During the Middle Ages, a popular sauce in the Genoan cuisine was Template:Lang, which was a mash of garlic and walnuts, as garlic was a staple in the nutrition of Ligurians, especially for the seafarers.<ref name="itchefs"/>
The introduction of basil, the main ingredient of modern pesto, occurred in more recent times and is first documented only from the 1850s. Emanuele Rossi published La Vera Cucineria Genovese in 1852 and gastronomist Giovanni Battista Ratto published La Cuciniera Genovese in 1863:<ref name="itchefs"/>
Basil took the firmest root in the regions of Liguria, Italy, and Provence, France.<ref name="McGee">Template:Cite book</ref> It is abundant in these regions in season, and marjoram and parsley may be used when basil is out of season.<ref name="itchefs"/> Ratto mentions Dutch cheese (Template:Lang) instead of Template:Lang (Sardinian sheep's cheese), since Northern European cheeses were common in Genoa at the time, thanks to the centuries-long commercial trades of the maritime republic.<ref name="itchefs"/>
This recipe for Template:Lang was often revised in the following years (a noted revision by Emanuele Rossi occurred in 1865, only a couple of years after Ratto's Template:Lang),<ref>Template:Cite book</ref> and it shortly became a staple in the Ligurian culinary tradition, with many variants.<ref>Template:Cite web</ref>
An early American pesto recipe was published in 1928; it includes butter and cream.<ref name="pestorecipe1928">Template:Cite news</ref> In 1946, Sunset magazine published a pesto recipe by Angelo Pellegrini. Pesto became popular in North America in the 1980s and 1990s.<ref name="sunsetApril2008">Template:Cite news</ref>
Ingredients and preparation
Pesto is traditionally prepared in a marble mortar with a wooden pestle. First, garlic and pine nuts are placed in the mortar and reduced to a cream,<ref name=CMPM/> and then the washed and dried basil leaves are added with coarse salt and ground to a creamy consistency. Only then is a mix of Parmesan and pecorino added. To help incorporate the cheese, a little extra-virgin olive oil is added. In a tight jar (or simply in an air-tight plastic container), covered by a layer of extra-virgin olive oil, pesto can last in the refrigerator for up to a week and can be frozen for later use.<ref name="Consorzio del pesto Genovese recipe">Template:Cite web</ref>
Accompaniments
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Pesto is commonly used on pasta, traditionally with mandilli de sæa ('silk handkerchiefs' in the Genoese dialect),<ref>Template:Cite web</ref> trofie or trenette.
Varieties
Pesto comes in a variety of recipes, some traditional and some modern, as the very noun pesto is a generic term for anything that is made by pounding.<ref>Template:Cite book</ref>
The original pesto alla genovese is made with Genovese basil, coarse salt, garlic, Ligurian extra virgin olive oil (Taggiasco), European pine nuts (sometimes toasted), and a grated cheese such as Parmesan or Grana Padano and pecorino sardo or pecorino romano.<ref name="Consorzio del pesto Genovese recipe"/> A proposal is under preparation by the Palatifini Association to have pesto alla genovese included in the UNESCO intangible cultural heritage list.<ref name="La Republica, 18 March 2018">Template:Cite web</ref>
There is a slightly different version in Provence, where it is known as pistou (from pistar, 'to pound' in Occitan).<ref>Template:Cite web</ref> Pistou is generally made with only olive oil, basil, and garlic, and not cheese, although some modern versions include it. Almonds or breadcrumbs can be used to give the final consistency.<ref>Template:Cite book</ref> Pistou is used in the soupe au pistou, a hearty vegetable soup.<ref name="Brennan">Template:Cite book</ref>
Outside of Italy, sometimes almond, Brazil, cashew, hazelnut, macadamia, pecan, pistachio, walnut or even peanuts are used instead of pine nuts, and sometimes coriander, dill, kale, mint, parsley, rocket, spinach or wild garlic leaves are mixed in with the basil leaves.<ref name="Brennan" /> Any combination of flavourful leaves, oily nuts, hard cheese, olive oil, garlic, salt, and lemon juice can produce a pesto-like condiment.<ref>Template:Cite web</ref>
Pesto alla siciliana, also known as pesto alla trapanese and sometimes called pesto rosso ('red pesto'), is a sauce from Sicily similar to pesto alla genovese but with the addition of fresh tomato and almonds instead of pine nuts, and much less basil.<ref>Template:Cite book</ref>
Pesto alla calabrese is a sauce from Calabria consisting of (grilled) bell peppers, black pepper, and more; these ingredients give it a distinctively spicy taste.<ref>Template:Cite book</ref>
Outside Italy, the name pesto has been used for all sorts of cold sauces or dips, mostly without any of the original ingredients: coriander, dill, kale, mint, parsley, rocket, spinach or wild garlic (instead of or in addition to basil), artichokes, black olives, green olives, lemon peel, lime peel or mushrooms.<ref>Template:Cite web</ref> In more northern countries, ramson leaves are sometimes used instead of basil.<ref>Template:Cite web</ref>
Vegan variations may substitute miso paste and nutritional yeast for cheese.<ref>Template:Cite book</ref>
Non-traditional variants of pesto
For reasons of expense or availability, almond, Brazil nut, cashew, hazelnut, macadamia, pecan, pistachio, walnut or even peanuts are sometimes substituted for the traditional pine nuts. Also, while the nuts are traditionally raw, some recipes call for prior toasting or roasting. Other nuts may be used due to the taste disturbances that some people may experience after consuming pine nuts (see pine mouth). Many online recipes in English for pesto include black pepper or white pepper,<ref>Template:Cite web</ref> which are not present in the usual Genoese recipe.<ref name="itchefs"/> Prepared pesto sold in supermarkets often replaces the extra virgin olive oil with cheaper vegetable oils. Some manufacturers of pesto for European supermarkets also use fillers such as potato flakes or potato starch, which soften the strong flavour. Certain pesto recipes abroad replace basil or pine nuts with other herbs and greens, such as:
- Coconut<ref>Template:Cite web</ref><ref>Template:Cite web</ref>
- Avocado and parsley<ref>Template:Cite web</ref><ref>Template:Cite web</ref><ref>Template:Cite web</ref>
- Carrots, coriander, and cumin<ref>Template:Cite web</ref><ref>Template:Cite web</ref>
- Turmeric<ref>Template:Cite web</ref><ref>Template:Cite web</ref>
- Ginger<ref>Template:Cite web</ref>
- Perilla leaf<ref>Template:Cite web</ref>
- Spirulina
- Walnuts
See also
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References
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