Whip all ingredients, shaking with a few pieces of crushed ice
Strain into pilsner glass filled with crushed ice
Swizzle until cold
Garnish with mint sprig
Serve with a straw
Background & History
"When used judiciously, vanilla syrup can add a lot of elegance to a drink. Here it softens a big, funky rum, making it play nice with the sherry." - Alex Day, Death & Co