Optional: cucumber slices and lime slices for garnish
Muddle cucumber slices in a shaker. Add ice, lime juice, gin, and elderflower liqueur and shake vigorously.
Strain mixture into a cocktail glass filled with ice. Top with soda and stir. Garnish with lime and cucumber slices, if you wish. Enjoy!
To make a pitcher, slice 1 cucumber and place in a pitcher with 3 oz lime juice, 9 oz gin, and 3 oz elderflower liqueur. Refrigerate 1-2 hours. Add 12 oz soda just before serving. Pour into glasses filled with ice. (Serves 6)