Combine gin, dry vermouth, and Campari in a mixing glass.
Fill with ice and stir for approximately 30 seconds until well chilled and properly diluted.
Strain into a chilled cocktail glass for a straight-up serve, or over a large ice cube in a rocks glass.
Express the oils from a lemon twist over the surface, then place the twist as garnish.
The switch from sweet to dry vermouth is subtle but transformative - the Cardinale reads leaner and more mineral, making it an ideal aperitivo for those who find the classic Negroni too sweet. Always use a well-chilled glass; temperature is critical to keeping this drink sharp and focused.
My Bar Shelf reads your shelf and shows you every cocktail you can make from what you already own, including Cardinale.