Cailler is a Swiss chocolate brand and production factory based in Broc. It was founded in Vevey by François-Louis Cailler in 1819 and remained independent until the early 20th century, when it associated with other producers. Shortly before, Cailler opened its main factory at Broc in 1898. The company was finally bought by Nestlé in 1929 and became a brand. Cailler is the oldest chocolate brand still in existence in Switzerland.

Chocolate, or cocoa, is a food made from roasted and ground cacao seed kernels that is available as a liquid, solid, or paste, either on its own or as a flavoring agent in other foods. Cacao has been consumed in some form for at least 5,300 years starting with the Mayo-Chinchipe culture in what is present-day Ecuador. Later Mesoamerican civilizations also consumed chocolate beverages before being introduced to Europe in the 16th century.