I created this cocktail while living in Italy based off of another recipe, but altered it to showcase my Italian influences, namely Aperol, blood orange, and liquore alloro.
Liquore alloro is a traditional Italian liquor made at home like limoncello or nocino. It's essentially an aged infusion of young bay laurel leaves in vodka or grain alcohol with simple syrup added. It has a deeply herbal yet sweet flavor that's not quite as complex as Chartreuse, but still satiates the herbal itch. I've found that it substitutes well for both Chartreuse and St. Germaine.
1 1/2 oz gin
3/4 liquore alloro
1/2 oz aperol
1 oz fresh blood orange juice
1/4 oz fresh lemon juice
Shake with ice and strain into a cocktail glass. No need for a garnish -- you'll probably drink it quickly and a garnish would just get in the way!