The secret to Tom Macy’s perfected rum Old-Fashion is in the “biz,” industry parlance for a minuscule batch of non-spirituous ingredients that helps bartenders make drinks faster and more accurately.
Rum Cooper’s Old-Fashioned
Tom Macy, Clover Club | New York

Ingredients
Serving: 1
- 2 ounces Brugal 1888
- ¼ ounce Brugal “Biz” (see Editor’s Note)
Garnish: lime peel, orange peel
Directions
- Stir ingredients in a rocks glass with a jumbo ice cube.
- Express lime and orange peel over top.
- Garnish with lime and orange peel.
Editor's Note
Brugal “Biz”
3 parts demerara syrup (2:1 demerara sugar to water)
1 part oloroso sherry
1 part Giffard Banane Du Brésil Liqueur
2 dashes Angostura bitters
Combine all ingredients in a bottle, seal and store refrigerated for up to two weeks.