The archive · Product Ideas · Product decision · 1946–2019
Giang Café's 1946 egg coffee becomes Hanoi's signature drink
In 1946 Hanoi, barman Nguyen Van Giang whisked egg yolk into coffee to beat a milk shortage — today Giang Café still sells the drink most Hanoi cafés copy.
Giang Café
What it had to solve
Nguyen Van Giang worked as a bartender at Hanoi's Sofitel Legend Metropole in 1946, when milk was scarce. He still had to serve coffee, so he needed a substitute that customers would actually like.
How it works
Egg coffee (cà phê trứng) was invented in 1946 by Nguyen Van Giang, a bartender at the Sofitel Legend Metropole in Hanoi. Facing a shortage of milk, he whisked egg yolks with condensed milk into a foamy sabayon and poured it over strong dark coffee, creating a sweet drink that tastes like custard on espresso.
Giang opened his own café in Hanoi's Old Quarter, and the recipe passed to his son Nguyen Van Dao, who still runs the shop. The drink is served hot or cold in a small bowl of warm water to keep it warm; CNBC's visit found it priced around $1.15, on par with a banh mi or a bowl of pho.
The invention outgrew one shop: most cafés in Hanoi now serve their own egg coffee, but Giang Café's version is still considered the original. During the 2019 US-North Korea summit in Hanoi, the café served about 700 cups a day as journalists and visitors lined up to try it.
Why it lands
- A wartime shortage forced a substitution that turned out tastier than the original recipe.
- Keeping the founding recipe and the founding shop made Giang Café the reference point for a city-wide drink.
- The format — thick, sweet, dessert-like — is distinctive enough that every new copy advertises the original.
What it did
Egg coffee became a Hanoi specialty: Giang Café serves about 100 customers on a normal day, most cafés in the city now offer their own version, and the drink is a draw for tourists and locals alike.
What you can take
A real constraint — missing milk — can become a signature product, and the place that keeps the original recipe gains a moat that every imitator only strengthens.
Since then
Giang Café remains one of Hanoi's oldest coffee shops and a standard stop for egg coffee. The drink spread across Hanoi, then through Vietnam's café culture and international food coverage, from CNBC to travel guides. The family business kept the original 1946 recipe and the tiny Old Quarter shopfront, turning a wartime improvisation into a lasting local industry and a food-tourism landmark.
Sources
- In Vietnam, coffee-drinking locals skip the cream and add an egg
- Giang café becomes more popular since 2nd DPRK-USA summit
spotted an error? The archive wants to know.
Your turn
You just read one. Describe the brief you are staring at, and see who has been given the same problem.
Free account · 3 free questions · no card