El Bar Americano en España by Pedro Chicote (1927, p.121)

1 tablespoonazúcar — 1 cucharada grande de azúcarbase
0.5 copitacoñac — 1/2 copita de coñacbase
0.5 copitawhisky Canadian — 1/2 copita de whisky Canadianbase
1 glassleche hirviendo — 1 copa de leche hirviendoother
nuez moscada rallada — Added at service.other
1 wholeyema de huevo fresco — 1 yema de huevo frescoother
  1. Beat very well in the shaker with a spoon and serve in a large glass.
  2. Finish with a little grated nutmeg.

Garnish: Grated nutmeg