Three rums — gold Demerara, dark Jamaican and light white — are laced together with lime, white grapefruit and a thread of honey, the grapefruit's bitter edge keeping the honey's softness in check while a splash of soda lifts the whole thing. It arrives over crushed ice crowned with a frozen cone of shaved ice pierced by a straw, a snow-capped peak that slows dilution and keeps the drink cold, potent and bright to the last sip.
shaken · Double Old Fashioned · Crushed
add
Combine all three rums, lime juice, white grapefruit juice, honey mix, and club soda in a shaker.
shake
Add ice and shake briefly to chill and combine.
strain
Strain into a double Old Fashioned glass packed with crushed ice.
garnish
Top with a frozen snow cone of shaved ice, passing a straw through it.
Donn Beach devised the Navy Grog in 1941 at Don the Beachcomber, his Polynesian-themed restaurant. He took the name from the watered rum ration that Vice Admiral Edward Vernon introduced for Royal Navy sailors in 1740, though Vernon's grog and this tiki drink are separate creations. Strong enough that the house famously rationed it, the cocktail later spawned a divergent Trader Vic version that brings in allspice dram, falernum and 151 Demerara rum.