The Amarosa Cocktail

Hello friends! I needed to make a substitution today because the original recipe calls for Amaro Cora, which was a sweet, earthy, orange aperitif that is supposedly still extant but unlike the author, I was unable to locate and procure any. I thought about using my homemade Hercules from a couple of drinks ago, but that isn't very orange-forward, so I decided to use Aperol instead. Overall, the drink is fairly sweet, but it has a slightly bitter, drying aftertaste which is welcome here because i...