Having an Old Fashioned this evening, according to Owen's original PT recipe (with a minor tweak or two.)
Add a teaspoon of vanilla infused turbinado sugar to a rocks glass, and mix in a few dashes of bitters (I used Fee Brothers Orange Bitters instead of Angostura) and some tonic water. Then rotate the glass around to coat the sides with the sugar/bitter/water syrup. Then add 2oz bourbon (Bulleit Rye, in this case) and a big ice chunk. Then zest an orange over the top. Stir thoughtfully.