Campari + Vermouth + Gin + Orange Peel...it's as easy as that!
For two cocktails:
3 oz. Campari
3 oz. Vermouth
3 oz. Gin
2 orange peels
Pour campari, vermouth and gin over ice. Shake or stir to combine.
Pour into chilled glasses over ice and garnish with an orange peel. (Twist the orange peel to release the oils).