Pour bourbon, Campari and sweet vermouth into a mixing glass. Add ice and stir for 20 seconds, until well-chilled.
Strain into a rocks glass over an oversized ice cube.
Garnish with an orange twist.
Notes
Bourbon creates a smoother, sweeter drink while rye whiskey creates a spicier cocktail.
In addition to an orange twist, a luxardo cherry is a popular garnish to add to this drink.
You can try an equal parts recipe or the slightly more bourbon-centered recipe that we share here. Compare them and see which you prefer. I personally prefer a bit of extra bourbon.