Kopi Santan

Lapland's coffee with cheese: cubes of bread cheese dropped into hot boiled coffee and eaten as they soften.

Yogyakarta's charcoal coffee: a glowing coal dropped into sweet black coffee for a hiss and a smoky, less acidic cup.

Huế's salt coffee: strong phin coffee topped with a salted sweet cream. The salt rounds off bitterness and became a nationwide trend.

Kopitiam coffee with a slice of butter melting into it, Southeast Asia's original butter coffee.

Malaysia's half-coffee, half-tea with condensed milk, served hot or iced at kopitiams.

Hong Kong's coffee-and-milk-tea blend, roughly three parts coffee to seven parts tea, named after the inseparable mandarin duck pair.