The Cocktail Book a Sideboard Manual for Gentlemen (1901, p.56)

0.5Orange curacao — Source gives one-half.base
0.5green creme de menthe — green mintmodifier
  1. Pour the orange curacao and green mint carefully into a pousse-cafe glass so that they do not mix.

This keeps a very small late after-dinner layered service visible in a domestic mixed-drinks chapter.

The drink depends entirely on careful layering and color contrast.

Lineage reconciliation

See also: Pousse Cafe, Pousse L'Amour