- 3 ounces sweet vermouth
- 1 1/2 ounces Campari
- 2 ice cubes
- Twist lemon peel
- Club soda
- Pour the vermouth and Campari into a tumbler, add ice cubes and lemon peel and fill with club soda. (The proportions may be varied to 2 ounces each of sweet vermouth and Campari.)