Cassis is a blackcurrant-flavoured liqueur. The sugar cubes really are personal preference. Some people may not like the sweetness of the sugar.
- 80 ml creme de cassis
- 750 ml champagne (3 cups)
- 8 sugar cubes (optional)
- Place one sugar cube in each of 8 glasses, add a capful or 2 teaspoons of liqueur to each glass.
- Fill each glass with well chilled champagne.
- Serve immediately.