When I planned my tour of Sicily I thought I would see as much as possible of it, thus I needed to well balance driving time and allocate reasonable visiting time at every stop, including overnights. Mazara del Vallo was a big surprise which exceeded my expectations thus I stayed too short.
Amaretto is simply "Amaretto". It's an almond based preparation, which also includes some egg whites and grinded apricot bone that gives a light bitter taste to the biscuit (amaro in Italian mean "bitter"). Amaretto is probably the most beloved italian biscuit. I know nobody who didn't like it, either italian of foreigner.