Very good cocktail if you use a high quality pacharan. In my opinion the bitterness should be regarded. Next time I will try less Campari and a not bitter vermouth (I used a Torino style).
I recently purchased Otaola Pacharan....did not know what it was, so thought to try. I do not know if it is representative of all Pacharan, but this one truly tastes like cough medicine. (In olden days Cough medicine is also alcohol and botanicals). I really do not care for this one straight or on ice, so have been looking for a cocktail. This recipe is pretty good...will try it with Rye as a Pacharan Boulevardier.