El Bar Americano en España by Pedro Chicote (1927, p.145)

1 scoophelado de chocolate — 1 helado de chocolatebase
0.5 copitaron Bacardi — 1/2 copita de ron Bacardibase
soda — Used to fill the glass.dilution
0.5 copitacrema de cacao — 1/2 copita de crema de cacaomodifier
  1. Build in a large crystal glass with chocolate ice cream, creme de cacao, and Bacardi rum.
  2. Finish with soda and serve in the same glass with straws.

Garnish: Straws