L'Art du Shaker by Dominique Migliorero (1925, p.40)

2 dashcognac — Cognacbase
1 coffee spoonpowdered sugar — Powdered sugarbase
1 glassMadeira modifier
1 yolkegg yolk — Fresh egg yolkother
  1. Shake hard, strain into a flip glass, dust with nutmeg, and serve.

Garnish: Nutmeg