Nutrition per serving may change if servings are adjusted.
1 sugar cube
2 or 3 dashes Angostura bitters
1½ ounces bourbon or rye whiskey
1 2-inch piece orange peel
Place sugar cube in a rocks glass. Drop bitters onto the sugar cube, then mash it into pieces with a muddler or strong spoon. Add bourbon (or rye) and ice cubes; stir until the sugar is mostly dissolved. Garnish with orange peel.