The Aurora Bora Borealis is a Jeff “Beachbum” Berry original, from his book Beachbum Berry’s Grog Log. It’s a straightforward tiki cocktail, sweet and acidic with a rich coconut aftertaste.
You can play around with the rums you use here – Beachbum calls for a dark Jamaican rum and light Puerto Rican rum, but you could swap one out for a gold rum, or even a good spiced rum.