Argentina's national drink — and no, it's not Malbec. Fernet-Branca mixed with Coca-Cola is the unofficial cocktail of Buenos Aires, drunk in enormous quantities at asados and football matches alike. Bitter, herbal and strangely addictive.

• Fernet-Branca5 cl
• Coca-Cola12 cl
• Iceplenty

1. 1Fill a tall glass generously with ice.
2. 2Pour in the Fernet-Branca.
3. 3Top slowly with cold Coca-Cola.
4. 4Stir very gently — one or two strokes.
5. 5No garnish needed; authenticity is everything.