Our friend got the recipe from www.davidlebovitz.com
http://www.davidlebovitz.com/rosemary-gimlet-gin-cocktail-recipe/
To make 4 gimlets…
Rosemary Syrup
1/2 cup (125ml) water
1/2 cup (100g) sugar
2 tablespoons (4g) coarsely chopped fresh rosemary leaves
Rosemary Gimlet
2 ounces gin
3/4 ounce fresh lime juice
3/4 ounce rosemary syrup
1. To make the rosemary syrup, heat the water, sugar and chopped rosemary leaves in a small saucepan, stirring occasionally, until the mixture is hot and sugar is dissolved. Remove from heat and let cool completely. Once cool, strain the rosemary syrup into a jar, and refrigerate until ready to use.
2. To make the rosemary gimlet, chill a stemmed cocktail glass in the freezer.
3. Measure the gin, lime juice and rosemary syrup into a cocktail shaker. Fill the shaker halfway with ice, preferably slightly crushed, cover, and shake the cocktail mixture about thirty seconds. Pour into a chilled cocktail glass. Garnish with a sprig of rosemary or a slice of fresh lime.