Ingredients :

1 oz (30ml) gin

1/2 oz (15 ml) lime syrup

3 slices of cucumber, crushed

3 oz (90 ml) tonic soda

Citrus slice (for garnish)

Preparation :

In a highball glass, crush the cucumber if using.

Fill with ice, then pour in all the ingredients (except the sparkling).

Mix with a spoon or a chopstick until your fingers become very cold.

Top with tonic soda (or sparkling water)

Garnish with a slice of citrus fruit.