There are many tales of how “advocaat” came to be. One belief dates back to Dutch colonial times when they were treated to a Brazilian drink with avocado (“advocaat”) pulp, cane sugar, and rum. The Dutch substituted egg yolk for the exotic fruit. There is also reference to a similar drink in 17th century Dutch texts about sailors in the Caribbean Islands.
Others place advocaat’s origins as the Dutch word for “lawyer.” An advocatenborrel is Dutch for “lawyer’s drink” where “borrel” is Dutch for a small alcoholic beverage consumed slowly during a social gathering. Named as a good lubricant for the throat, this drink is considered especially useful for a lawyer who must speak in public.