Ok, but which Amaro? Averna is listed, but as a newbie, I don't have it yet, and can't rationalize Yet Another Bottle without risking an insurrection.
Nonino? Nardini? Ramazzotti? They all seem pretty close together with their orange flavor, I think.
Meletti? This one gets too close to Fernet for my palate.
Heck, Amer Picon is supposed to fit under the Amaro tent, along with Cynar.
Click on the link for Amaro in the recipe and you are graced with a dizzying list of … equivalents? I guess it's time to start wading through that list to get an idea of the differences.
The closest analogue is Ramazzotti. It's almost the same. Nonino is completely unsuitable. It has a more floral and drier flavor. It's also more bitter and has a grappa-like taste.