Place sugar in an Old Fashioned glass. Wet it down with Angostura bitters and a splash of club soda, then muddle. Add a large ice cube and whiskey. Stir, then garnish with an orange twist.
- INGREDIENTS: 2 oz. (6 cl) bourbon or rye whiskey 2-3 dashes Angostura bitters 1 sugar cube (or 1/2 tsp. loose sugar) club soda