Yuanyang — yuenyeung in Cantonese — is a mixture of coffee and Hong Kong-style milk tea, served hot or iced.
The name
Mandarin ducks, which in Chinese symbolism are always seen as a pair and are noted for the male and female looking completely different. The name signals two unlike things joined.
What goes in it
Hong Kong milk tea: strong black tea, traditionally brewed through a cloth “sock” filter, with evaporated milk and sugar.
Strong brewed coffee, similarly prepared.
Mixed roughly three parts coffee to seven parts tea, or the reverse — proportions vary by shop and there is no standard.
Why it works
Tea tannins and coffee bitterness are structurally similar, and evaporated milk plus sugar carries both. The result is heavier and more aromatic than either alone, with tea’s astringency cutting coffee’s roundness.
Where you drink it
Cha chaan teng — Hong Kong tea restaurants — where it is a staple alongside pineapple buns and instant noodles. It appears across the Cantonese diaspora.
Making one at home
Brew strong black tea and strong coffee separately. Combine, add sweetened condensed or evaporated milk and sugar, and adjust the ratio to taste.
Iced, over plenty of ice, is the summer form.
A recipe that works
For one mug, simmer 2 heaped teaspoons of strong black tea, or 2 tea bags of a robust Ceylon or Assam blend, in 200 ml (7 oz) of water for four to five minutes, then strain. Mix with 90 ml (3 oz) of strong coffee, from a moka pot, AeroPress or double espresso. Add 2 to 3 tablespoons of evaporated milk and sugar to taste. Taste it before adding more coffee: the tea should still be clear in the finish.
What makes it Hong Kong
The tea is the defining part. Hong Kong milk tea is a blend of several black teas, brewed very strong and poured repeatedly through a long cloth filter that looks like a stocking, which is why it is also called silk stocking tea. That pouring gives it a smooth, full texture. Evaporated milk, rather than fresh milk, is essential: it adds a slightly cooked, caramel note and thickens the drink without watering it down.
Served how
Hot, in a thick cup, with a pineapple bun or toast. Iced versions sometimes chill the drink in a metal cup set in ice, so that melting does not dilute it.