The Hemingway Daiquiri is also known as the Papa Doble or Hemingway Special and it is a popular classic cocktail. As one may expect, it was named after the famous writer of the 1920's and 30's, Ernest Hemingway.
It is widely known that Hemingway enjoyed a drink or two. Biographical books like A Moveable Feast include countless tales of sharing drinks with literary friends while in Paris and much of his free time throughout his life was spent in bars. He was quite selective about what he imbibed and certainly had his preferences.
After spending some time in Cuba, Hemingway quickly became enamored with the Daiquiri. In 1921 Constantino Ribailagua, of El Floridita in Havana, created this variation in honor of his daiquiri-loving regular. At the bar, it was often served frozen. It's an easy variation to make -- just add 3/4 to 1 cup of ice to a blender.
As far as the drink goes, you will enjoy this amplified daiquiri because it brings the sweetness of maraschino along with tart grapefruit into the classic rum-lime mix. It's quite a delight and a nice drink to break routine.
For Hemingway himself, the Hemingway Daiquiri was served without sugar and is almost always prepared that way despite the fact that most people prefer the added sweetness.