Ngiam Tong Boon
The Hainanese-Chinese bartender at Raffles Hotel’s Long Bar in Singapore who created the Singapore Sling around 1915. Beyond that he is largely unknown—even his birth and death dates are uncertain—and the original recipe was lost during the Japanese occupation. Everything served under the name today is a reconstruction.
The architect of the Singapore Sling.
Ngiam Tong Boon was a Hainanese-Chinese bartender at the Long Bar of Raffles Hotel in colonial Singapore in the early twentieth century. Around 1915, he created what became one of the most famous cocktails of the British colonial era—the Singapore Sling—and then largely disappeared from the historical record.
What we know about him: he was Chinese, of the Hainanese diaspora that staffed many of Singapore’s colonial-era hotel bars. He worked at Raffles, which by the early 1900s had established itself as the premier hotel of British Malaya. He created the Sling reportedly as a cocktail respectable enough for women to drink in public—an era when respectable women weren’t expected to be seen drinking spirits openly, but a fruit-based gin punch in a tall glass could pass as more or less acceptable. The drink propagated through the British Empire’s hotel circuit and made its way to Europe and America by the 1920s.
Beyond those facts: very little. His birth and death dates aren’t documented in any reliable source. Photographs of him exist in Raffles’ archives but are rarely reproduced. His personal history before and after Raffles is a blank.
The recipe and its loss
The original 1915 Sling recipe was lost during the Japanese occupation of Singapore in World War II, when Raffles was used as military quarters and the bar’s records were dispersed or destroyed. After the war, Raffles attempted to reconstruct the drink from staff memory—most of those staff were Hainanese bartenders who had worked alongside or under Ngiam Tong Boon—and produced the version that has been served as the Singapore Sling ever since.
The modern Raffles recipe is itself a particular interpretation. Cocktail historians broadly accept that the gin, the cherry brandy (Heering), the pineapple juice, the lime, the grenadine, the Bénédictine, and the dash of Cointreau are probably all original. The exact proportions are debated. There are several documented variations from the 1920s and 1930s, all claiming to be Ngiam Tong Boon’s recipe and all differing in details. The version Forbidden Altar serves on the Singapore Sling page reflects the modern Raffles canonical proportions.
The colonial context
The Sling is a cocktail with complicated cultural origins. It was invented by a Chinese-Malayan bartender working in a British colonial hotel, served primarily to European clientele, in a city under British colonial rule that had been built on the labor of Hainanese and other Chinese immigrants. The drink that emerged is genuinely a fusion—gin and Heering from European traditions; pineapple, lime, and tropical fruit from Southeast Asian agriculture—but its history is not a happy multicultural fable. It’s a colonial-hotel artifact that has been claimed by Singapore as a national symbol since independence in 1965.
Forbidden Altar treats the Sling as Tiki-Adjacent rather than Canon: it isn’t an exotic cocktail in any meaningful sense, but it sits in the broader exotic-cocktail conversation because it shares the flavor vocabulary and the international-hotel-bar tradition that produced figures like Joe Scialom.
What he left
A drink, and not much else. The Sling’s longevity is a function of the venue’s persistence; if Raffles had been demolished after the war (it nearly was), the cocktail might have disappeared. As it is, the Long Bar still operates at the same address, still serves the Sling, and still credits Ngiam Tong Boon by name on the menu. That credit is rare and deserved.
The larger story Ngiam Tong Boon’s career suggests—that exotic cocktails owe substantial debts to non-American bartenders working in non-American hotel bars across the colonial twentieth century—is one Forbidden Altar tries to honor wherever possible. Naming him matters because almost no one else does.
To go deeper
- Bar The Long Bar at Raffles Hotel, 1 Beach Road, Singapore. Still serving the Singapore Sling. Tourist-heavy now, but the room itself is original.
- Reading Most cocktail-history books include a Sling chapter, but few do justice to Ngiam Tong Boon as a person. The most thorough treatment is in Anistatia Miller and Jared Brown’s writing on colonial-era cocktail history.