Cha Yen

Bangkok's iconic Thai iced tea: a powerfully brewed blend of Ceylon black tea and star anise, sweetened with condensed milk, poured over crushed ice and finished with a slow pour of evaporated milk that creates the characteristic layered amber-and-cream crown before stirring

Origin: Bangkok, Thailand

From the journey of Tea.

Cha yen (ชาเย็น, literally 'cold tea') is the defining drink of Bangkok's street food culture and one of the most immediately recognisable beverages in Southeast Asian cuisine. Served in a clear plastic cup with a fat straw, its characteristic appearance — a deep amber or orange base of sweetened tea visible beneath a white crown of slowly sinking evaporated milk, transforming as the drinker stirs — is as much a visual statement as a flavour experience. The specific orange or amber colour of commercial cha yen derives from the Thai tea powder blend (ชาไทย) sold throughout Thailand, which contains Ceylon or Assam black tea, star anise, tamarind seed powder for a slight tang, and in most commercial versions the food colouring Sunset Yellow FCF, which produces the vivid orange associated with the drink internationally. The natural tea-and-star-anise version brews to a deep amber rather than orange: both are correct, and both are drunk throughout Thailand. The preparation involves two separate dairy elements: sweetened condensed milk is added to the hot brewed tea to sweeten it, and then separately evaporated milk (unsweetened) is poured slowly over the back of a spoon onto the surface of the iced tea to create the layered visual before serving. The drinker stirs to combine. Cha yen is inseparable from pad thai, green papaya salad, and the mid-morning break at every market and roadside stall in the country.

Ingredients

Tea

3 tsp Thai tea powder (ชาไทย) or, if unavailable: 3 tsp of strong Ceylon or Assam loose-leaf black tea plus 1 whole star anise and a small pinch of ground tamarind (or a squeeze of tamarind paste) for the natural non-coloured version
300 ml freshly boiled water

Milk

3 tbsp sweetened condensed milk, or more to taste
4 tbsp evaporated milk (full-fat; this is poured over the top as the finishing layer and is NOT mixed in before serving)

Ice

crushed ice or ice cubes, filling two tall glasses

Method

Brew the tea: combine the Thai tea powder (or tea, star anise, and tamarind) with the boiling water in a heatproof jug. Steep for 5 minutes. Strain through a fine sieve into a clean jug, pressing the tea to extract all the liquid. The brew should be very dark and intensely flavoured.
While the tea is still hot, add the condensed milk and stir well to dissolve. Taste for sweetness and add more condensed milk if needed. The sweetened tea should be noticeably sweet: cha yen is a sweet drink.
Fill two tall glasses completely with crushed ice. Pour the sweetened tea base over the ice until the glasses are about three-quarters full.
Pour 2 tablespoons of evaporated milk slowly over the back of a spoon held just above the surface of each glass, so it floats on top rather than immediately sinking. This creates the characteristic layered appearance: dark amber tea below, white evaporated milk settling on top. Serve immediately.
Serve with a wide straw. Stir just before drinking to combine the layers.

Notes

Thai tea powder (ชาไทย) is available at Thai grocery stores and online; brands like Cha Tra Mue (number one brand in Thailand) are widely available internationally and produce the authentic colour and flavour. The natural version (Ceylon black tea + star anise) produces a deep amber tea rather than orange but is equally delicious and arguably more complex. Cha dum yen (ชาดำเย็น, black iced tea) is the same preparation without any milk: just strong sweetened black tea over ice, and equally popular at Thai markets.

The Gastrographer

Name: Cha Yen
Prep time: 10 min
Cook time: 5 min
Total time: 15 min
Yield: 2
Cuisine: Thailand
Ingredients: 3 tsp Thai tea powder (ชาไทย) or, if unavailable: 3 tsp of strong Ceylon or Assam loose-leaf black tea plus 1 whole star anise and a small pinch of ground tamarind (or a squeeze of tamarind paste) for the natural non-coloured version; 300 ml freshly boiled water; 3 tbsp sweetened condensed milk, or more to taste; 4 tbsp evaporated milk (full-fat; this is poured over the top as the finishing layer and is NOT mixed in before serving); crushed ice or ice cubes, filling two tall glasses

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Journey Point Map Key

Ingredient originTrade or transit route

Became a culinary stapleColonial / trade control