Chick-fil-A, Inc. (/ˌtʃɪkfɪˈleɪ/ CHIK-fil-AY, a play on the American English pronunciation of "filet") is an American fast food restaurant chain and the largest chain specializing in chicken sandwiches.[5] Headquartered in College Park, Georgia, Chick-fil-A operates 3,059 restaurants across 48 states, as well as in the District of Columbia and Puerto Rico.[1][6] The company also has operations in Canada, and previously had restaurants in the United Kingdom and South Africa. The restaurant has a breakfast menu, as well as a lunch and dinner menu. The chain also provides catering services. Chick-fil-A calls its specialty the "original chicken sandwich". It is a piece of deep-fried breaded boneless chicken breast served on a toasted bun with two slices of dill pickle, or with lettuce, tomato, and cheese.[8] Many of the company's values are influenced by the Christian religious beliefs of its late founder, S. Truett Cathy (1921–2014), a devout Southern Baptist. Reflecting a commitment to Sunday Sabbatarianism, all Chick-fil-A restaurants are closed for business on Sundays,[9][10] Thanksgiving, and Christmas Day.[11] During the Western Christian liturgical season of Lent, Chick-fil-A promotes fish sandwiches, following the Christian tradition of abstinence from meat during Lent.[12][13] The company's conservative opposition to same-sex marriage has caused controversy, though the company began to loosen its stance on this issue from 2019.[14] Despite numerous controversies and boycott attempts, the 2022 American Customer Satisfaction Index found that Chick-fil-A remained the country's favorite fast food chain for the eighth consecutive year, and it has the highest per store sales of any fast food chain in the nation.