Make Sangria Simple Syrup.
Add 1/2 oz. (~1 tablespoon) Sangria simple syrup and 5 dashes
Angostura bitters to an old-fashioned glass. Twirl until bitters and
syrup are completely mixed.
Fill glass with ice 3/4 of the way up and add 2-2.5 oz. bourbon. Stir
(do not shake!) Taste, then allow to set 5 minutes (the ice is key!).
Dangerously delicious.