2oz Bourbon
1oz HipStirs Old Fashioned Syrup
1-2 dashes bitters
Shaved dark chocolate, too top
Toasted marshmallows, to top

Add a large ice to a rocks glass. Add the bourbon, old fashioned syrup and bitters to the glass. Stir until chilled. Shave a little chocolate over the top and garnish with toasted marshmallows.