Horseshoe crab served with sriracha sauce in the town of Si Racha
Sriracha (Thai: ศรีราชา, Thai pronunciation: [sǐː.rāː.tɕʰāː]) is a type of hot sauce made from a paste of chili peppers, distilled vinegar, garlic, sugar, and salt. It is named after the coastal city of Si Racha, in the Chonburi Province of Eastern Thailand, where it was possibly first produced for dishes served at local seafood restaurants.
In Thailand, Sriracha is frequently used as a dipping sauce, particularly for seafood. In Vietnamese cuisine, Sriracha appears as a condiment for phở, fried noodles, a topping for spring rolls (Chả giò), and in sauces. 
In Thailand the sauce is most often called sot Siracha (Thai: ซอสศรีราชา) and only sometimes nam phrik Siracha (Thai: น้ำพริกศรีราชา). Traditional Thai Sriracha sauce tends to be tangier in taste, and runnier in texture than non-Thai versions.
In a bonappetit.com interview, U.S. Asian-foods distributor Eastland Food Corporation asserts that the Thai brand of hot sauce Sriraja Panich—which Eastland distributes—is the original 'Sriracha sauce' and was created in Si Racha, Thailand in the 1930s from the personal recipe of a housewife named Thanom Chakkapak.
Various restaurants in the U.S. including Applebee's, P.F. Chang's, Subway, and Gordon Biersch have incorporated Sriracha into their dishes, mixing it with mayonnaise or into dipping sauces.
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- Shyong, Frank (April 12, 2013). "Sriracha hot sauce purveyor turns up the heat". Los Angeles Times. "Roland Foods in New York makes its own variety, Sriracha Chili Sauce, in a similarly shaped yellow-capped bottle featuring two dragons instead of a rooster. Frito-Lay is testing a Sriracha-flavored potato chip, and Subway is experimenting with a creamy Sriracha sauce for sandwiches."
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