Rosemary Grapefruit Gin & Tonic
Ingredients:
* 2 oz Waterloo Gin, No. 9 Gin
* 1 oz fresh grapefruit juice
* ½ oz rosemary simple syrup
* 2 dashes Angostura bitters
* tonic water
* grapefruit slice, for garnish
* rosemary sprig, for garnish
Method:
To make the rosemary simple syrup, add half a cup of granulated sugar, half a cup of water,