Ah, the negroni. The first time I ever visited the Holland House (RIP), this is the cocktail I ordered. And I hated it. I thought it tasted of earwax, I sent it back, refused to be charged for it, etc etc. Basically threw a holier-than-thou-24-year-old fit. (Sorry HH). This drink was simply more mature than I was, and it would take a few years for me to catch up to it.
This is your classic aperatif, enjoy outside after a sunny afternoon to prepare yourself for dinner.
1 oz gin
1 oz campari
1 oz sweet vermouth
Add ingredients together in cocktail shaker, shake well with cracked ice, strain into chilled cocktail glass, garnish with orange peel