Bartender award: What makes a drink a cocktail?

The latest rankings for the world's best bars were released this week - and perhaps it's no surprise that London took the top spot, with Singapore and New York also on the podium.

But what makes a good bar, let alone a great cocktail? The BBC caught up with one award-winning bartender to find out more about the industry.

Produced by Monica Miller. Shot and edited by Aimran Supardi.