1 oz Gin
1 oz Dry white wine, Sauvignon blanc
1⁄2 oz Elderflower liqueur, St. Germain
1⁄2 oz Lime juice
1⁄2 oz Agave syrup
Instructions
Shake with ice, strain into a chilled cocktail glass
History
Re "forbidden fruit" of Barbados: http://en.wikipedia.org/wiki/Grapefruit