A cocktail created in 1939 connection with the introduction of the new streamlined Dreyfus Hudson Engine which began pulling the Twentieth Century Limited train between New York City and Chicago in 1938. The recipe was first published in 1939 in the Cafe Royal Bar Book. -from wikipedia
1 1/2 oz gin
1/2 oz white creme de cacao
1/2 oz Lillet Blanc
1/4 oz fresh lemon juice
Pour the ingredients into a cocktail shaker filled with ice.
Strain into a chilled cocktail glass.