Caquelon refers to an earthenware pot used in making Fondue; traditional Fondue pot. Moreover, a Caquelon is a cooking vessel of stoneware, ceramic, enamelled cast iron or porcelain for the preparation of fondue.
Caquelon which is also known as Câclon" is made of a heavy earthenware, but other variations are now in used and available: glazed ceramic or enameled iron. All variations are heavy to help promote even heat distribution and heat retention.
In some languages, Caquelon is also called Gagglon or Gagglo.