Tea syrup, yields approx. 800 ml: 3⁄4 Bring l water to the boil in a small pot and let it cool down briefly. Add 4 tea bags of green jasmine tea and let it steep for about 6 minutes. Add 250 g sugar to the tea and heat it while stirring until the sugar is dissolved.
Bring tea to the boil and simmer for 6-8 minutes. For storage, fill into a prepared bottle while still hot, close it and let it cool down. The syrup will keep in the refrigerator for about 3 weeks.
Wash lemon balm and dab dry. Place the balm, ice cubes and lemon slice in a glass. Add jasmine tea syrup. Fill up with cool tonic water and serve.