- 3 ounces scotch
 - 1 tablespoon superfine sugar
 - 2 tablespoons lemon juice
 - 1 tablespoon lime juice
 - 3 or 4 ice cubes
 - Club soda
 
- Combine all ingredients except the soda in a cocktail shaker and shake vigorously. Strain into a highball glass and fill with soda.