Pour the cognac and white crème de menthe into a mixing glass with ice and stir until well chilled.

Strain over crushed ice into a glass with ice cubes.

The exact origins of the stinger are unclear, but it appeared in print at least in 1914 when Jacques Straub included it in his book "Drinks". In his book "Imbibe!", drinks historian and author David Wondrich reports that the stinger is primarily associated with Reginald Vanderbilt - yes, the Vanderbilts. In a newspaper article from Ohio in 1923, the invention is even attributed to him, as he had already enjoyed serving it to guests in his home two decades earlier. So it seems we can thank old Reggie for this classic.