- 1 × soda water
- 40 ml Campari
Fill an iSi Soda Siphon or iSi Sodamaker Classic with cold water. Screw on 1 iSi Soda Charger and shake vigorously. If the water is particularly sparkling, cool it in the refrigerator for 1-2 hours.
Put ice cubes in a longdrink glass and pour the Campari over them. Top up with soda water. Serve with a lemon zest.