If you don't have any measures, try the following:
Fresh, sharp and very easily drinkable.
This cocktail dates back to World War I, so they say, and an early form was created in 1915 at the New York Bar in Paris—later Harry's New York Bar—by barman Harry MacElhone. The combination apparently has such a kick that it feels like you're being shot by the French 75mm field gun. I'm happy to never know if it's a fair comparison. Thus, a star was born