Used the Cocktail Finder to discover this - the one and only recipe in the Guide using vodka, elderflower liqueur and pineapple juice. It certainly does not disappoint! Tried first with 25ml elderflower: the result is tangy with prominent lime. Then added 5ml more of elderflower, as per recipe, and the flavours blend well, the sweetness balancing the lime sourness. It's always fun using pineapple juice, as shaking gives a guaranteed frothy top!