2 oz. white rum, preferably Brugal 1 oz. coconut rum, preferably Bacardi Malibu 4 oz. crushed pineapple, plus wedges ½ oz. fresh lime juice 1 oz. cinnamon syrup, such as Trader Tiki's Maraschino cherries, for garnish
Purée rums, pineapple, juice, syrup, and 1½ cups ice in a blender. Pour into cocktail glasses; garnish with pineapple wedge and cherries.