Cocktails Bar La Florida by Constante Ribalaigua Vert (1934, p.122)

1 peellemon peel acid
0.33 partcognac — Tres Copas cognacbase
1 dashAngostura bitters — Angosturabitter
0.33 partcreme de cacao modifier
0.33 partcream — fresh sweet creamother
1 teaspoonsugar sweetener
  1. Shake well and strain into a cocktail glass.

Ice: Cracked ice