Wash the limes, dab dry and cut one into slices. Squeeze 2 limes. Wash the mint and dab dry. Pluck leaves from a pot. Put lime slices, mint leaves and tea in a large container and boil 2 litres of boiling water over them. Leave to stand for about 20 minutes.
Pour tea through a sieve and mix with sugar and lime juice (approx. 6 tablespoons). Let it cool down and put it in a cool place. Cut remaining limes into thin slices. Add to the cooled tea with ice cubes. Serve garnished with remaining mint
Tip: You can also freeze mint leaves or lime pieces in the ice cubes