50ml 6a Gin
25ml Elderflower Cordial (BottleGreen is excellent)
25ml Supasawa (or just lemon or lime juice)
Add the Gin, Cordial, Supasawa and ice to a shaker and shake for a few seconds.
Pour into a glass through a Hawthorne Strainer, top with soda water and garnish with a lemon peel.