Place a large ice cube in an Old Fashioned glass.

In a mixing glass, combine the bourbon, cherry liqueur, simple syrup, chocolate bitters, and Angostura bitters.

Add ice to the mixing glass and stir until well-chilled.

Strain the mixture into the prepared Old Fashioned glass over the large ice cube.

Garnish with a cherry and an orange peel. Express the orange peel over the drink by twisting it to release the oils, then drop it into the glass.