The Cassalanter family of Waterdeep exerts a strong influence across the Sword Coast due to their heavy involvement in the banking sector, but the members of this family are definitely more powerful than popular. Rumors abound of their involvement in shady affairs, with talk of necromancy, vampirism, and tax avoidance. There is even scuttlebutt that the current Lord and Lady Cassalanter, Victoro and Ammalia, sold their own young children's souls to a demonic entity and that their eldest child and heir, Osvaldo, is chained up in the depths of the netherworld.
There was a time not long ago when the Cassalanter name was a proud one; Victoro's father, Caladorn Cassalanter, was revered as a hero across the North, and the family as a whole was loved for its philanthropy. Those are the Cassalanters for whom this refined creamy cocktail is named, not the current batch of psychopaths. Superstitious patrons at the Driftwood may order this drink as a "Caladorn" to avoid invoking the Cassalanter name and its diabolical associations.