Gin Cassis Fizz

2 1/2 oz gin

1 1/2 oz lemon juice

1 tsp superfine sugar

4 oz club soda

1/2 oz creme de cassis

Special instructions:
In a shaker half-filled with ice cubes, combine the gin, lemon juice, and sugar. Shake well. Strain into a collins glass almost filled with ice cubes. Add the club soda. Stir well. Drop the cassis into the centre of the drink.