2 oz. Bourbon
1 Lump demerara sugar
2-3 Dashes Angostura bitters
Place sugar lump in a rocks glass and saturate it with two to three dashes of Angostura bitters. Muddle the sugar and add whiskey. Swirl to combine and coat the sides of the glass. Express a piece of orange zest over the drink and drop in the zest. Add a couple of medium-sized pieces of ice. You may also want to add a little spray of seltzer water too; we do sometimes.
We've already written extensively about our love for the Old Fashioned cocktail and its origin, so if you're interested check it out and learn while you enjoy one.