1. Add 1 oz gin , 1 oz Campari , and 1 oz sweet vermouth to a mixing glass filled with ice.

2. Stir well until the mixture is well chilled.

3. Strain into a rocks glass with a large ice cube .

4. Cut a piece of 1 orange peel .

5. Express the orange peel over the drink by twisting it, then rub it along the rim of the glass before dropping it into the cocktail.