Put all the ingredients in a blender. Flash-blend for 3 to 5 seconds. Pour into a glass. Serve with an ice cone around straw.
Ice Cone“This was the signature Navy Grog garnish throughout Tiki’s midcentury golden age. Prep the cone in advance with a Beachbum Berry Navy Grog Ice Cone Kit. (Or you can just pack a pilsner glass with finely shaved ice, run a chopstick through the middle to make a hole for the straw, then remove the cone from the glass and freeze the cone overnight. I won’t take it personally. Well, maybe just a little bit.)”—Jeff “Beachbum” Berry