A touch of blackcurrant liqueur transforms a flute of Champagne into an elegant, jewel-toned aperitif beloved across France.

• Crème de cassis1.5 cl
• Champagne12 cl

1. 1Add the crème de cassis to the bottom of a chilled champagne flute.
2. 2Gently pour Champagne on top.
3. 3Do not stir — the colours will blend beautifully on their own.