Rum Swizzle Cocktail

SERVES 6

4 oz. Gosling's Black Seal Rum
4 oz. amber rum
2 oz. triple sec
5 oz. pineapple juice
5 oz.
Orange juice
Juice of two lemons
2 oz. Bermuda Falernum or simple syrup
4 dashes bitters

1. In a large shaker of cracked ice, combine ingredients and shake until frothy, then strain into individual glasses.