Irish moss (or sea moss) is a jamaican beverage in which the main ingredient is the marine red algae gracilaria spp. (itself one of several commonly referred by the name of "irish moss", purportedly introduced to the island's coast by irish immigrant laborers), boiled in milk with sugar or honey and various spices added such as vanilla, cinnamon, and nutmeg. depending on the recipe, other ingredients may include sweetened condensed milk and additional thickening agents such as gum arabic or isinglass (fish gelatin), as well as ingredients like rolled oats or linseed oil to add extra fat content. a peanut-flavored version is also widely available, which is based upon another drink popular ...

Source: Wikipedia