Why a Jungle Bird needs a little bitter: the spec and a balance builder

The Jungle Bird is a tiki drink with a bitter streak: dark rum, pineapple and lime, with a little Campari to stop it tasting like a smoothie. It came from a hotel bar in Kuala Lumpur in the 1970s.

Here is the modern spec in ml and oz, how to shake and serve it, and why the bitter, sweet and sour balance. Drag the sliders to see what happens when you change the Campari, the lime or the pineapple, and try a low or no version.