This elegant cocktail is the ideal choice for drink and dinner parties. Good to impress, as the added touch makes it look as though you've gone to way more effort than you have!
1 sugar cube
3 drops angostura bitters
100ml champagne (chilled)
Drop the sugar cube into a champagne glass and cover with a few drops of angostura bitters.
Top with the cognac.
Slowly top up with champagne, tilting the glass slightly.