When I first tried this bittersweet tequila-laced cocktail, I intended to add a dash of orange bitters but mistakenly used Peychaud's and found I liked...
Excellent - the Lucano, Cardamaro and bitters are the keys to the flavor, bringing a depth of moderate earthy herbal, slight spice and slight bitter, with the tequila acting to add a bit of bright citrus. I really enjoyed this, and how it transformed a blanco tequila into something much more complex.