Whip up one of these martinis to celebrate a second full moon in a month

Blue Moon Cocktail

The second full moon of the calendar month is popularly called a blue moon. As a tribute, we’ve mixed a cocktail that’s as sweet, rich, and smooth as the song when crooned by Frank Sinatra. For your next blue moon evening, put Ol’ Blue Eyes on the turntable, whip up a batch of these drinks (each garnished with a moonlike slice of orange), and lift a glass to the kind of evening that only happens once in a blue moon.