This is a twist on the Boulevardier (a negroni with bourbon instead of gin) that will make the cocktail angels sing. I sometimes swap sherry for port in cocktails, and this is a cocktail that tastes even better with sherry in my opinion.
from: Death & Co
makes: 1 cocktail
1 1/2 ounces Rittenhouse Rye
1/2 ounce Stagg bourbon (I used Wild Turkey Kentucky Spirit)
1/2 ounce 10-year tawny port (or sherry if you prefer. Olorosso is a good one)
1/2 ounce Carpano Antica vermouth
1 teaspoon Campari
1 teaspoon white crème de cacao
garnish: 1 orange twist
Stir all the ingredients over ice, then strain into a coupe. Garnish with the orange twist.