The Leap Year
Another new one, recently discovered. I just thought it looked like part of the family, so I adopted it.
The Leap Year: (Harry Craddock)
2 oz gin
1/2 oz orange liqueur
1/2 oz sweet vermouth
1 dash fresh lemon juice
Shake well with ice, shake well for 10 seconds, strain into a chilled cocktail glass, lemon twist for garnish