El Bar Americano en España by Pedro Chicote (1927, p.127)

1 wholeyema de huevo fresco — 1 yema de huevo frescobase
0.5 glasschartreuse amarillo — 1/2 copa de chartreuse amarillomodifier
0.5 glassgoldwasser de Dantzig — 1/2 copa de goldwasser de Dantzigmodifier
  1. Layer carefully in a sherry glass so the ingredients do not mix.
  2. Serve with straws.

Garnish: Straws