Private Island has no bar pedigree behind it — it's credited on Difford's Guide to J. E. Clapham, a prolific home recipe developer and self-published cocktail-book author (Difford's community contributor, not a professional bartender or bar). No independent site, book, or bar menu documents this drink beyond Difford's own listing, so treat the c. 2023 creation date and Clapham's authorship as accurate but single-sourced rather than independently corroborated. What's genuinely interesting here is the build: a light rum base gets a small float of unaged agricole for grass and funk, plus apricot liqueur standing in for the usual curaçao or falernum, all fine-strained up rather than served over crushed ice like most tiki drinks.
Delicate grassy agricole rum and apricot brandy dance in this beautifully balanced, Tiki-style cocktail.
Difford's GuideA Difford's Original, Honestly Labeled
Private Island doesn't come with a bar story, an inventor bartender, or a decades-old lineage — it's a recently submitted original recipe, credited on Difford's Guide to J. E. Clapham, whose Difford's profile lists a string of other original drinks and several self-published books on Chartreuse, Campari, and Amaro. That's a real name attached to a real recipe, but it's a home enthusiast's contribution to a cocktail database, not a bar-tested house drink with years of service behind it.
No other cocktail site, book, or bar menu turns up an independent version of this drink. That's not unusual for a very recently catalogued recipe, but it does mean the entire record for Private Island — ingredients, ratios, name, and creator — rests on one source. We're publishing the recipe as documented because it's precise and internally consistent, while being upfront that it hasn't been corroborated anywhere else yet.
The Spec
A light, charcoal-filtered white rum carries the body, with a small pour of unaged rhum agricole adding a grassy, cane-forward edge. Lime, orgeat, and apricot liqueur round it into a fine-strained, up-served sour — closer to a modern coupe cocktail than a crushed-ice tiki mug.
Why agricole, in a small dose
A quarter ounce isn't enough to make the drink taste like a straight agricole cocktail — it's there to needle the light rum with grass and funk, the same way a rinse of overproof rum sharpens a milder tiki base elsewhere.
Apricot liqueur over curaçao
Most tiki sours reach for orange curaçao or falernum for their modifier. Apricot liqueur brings fruit without orange-peel bitterness, which is part of why this drink reads softer and more floral than a Mai Tai-style build.
Bottom Line
Private Island is a well-built modern sour worth making even without a bar legend behind it — just don't repeat the c. 2023 Difford's-only origin story as if it were decades-old tiki history.