01 - Bring 4 cups of filtered water to a rolling boil in a kettle or saucepan.
02 - Rinse the teapot with a small amount of boiling water to preheat it, then discard the water.
03 - Add the green tea and fresh mint leaves to the warmed teapot.
04 - Pour the boiling water directly over the tea and mint leaves in the teapot.
05 - Add sugar according to preference and stir gently to dissolve, if using.
06 - Cover the teapot and let the mixture steep for 5 minutes to extract flavors.
07 - Strain the tea into cups and serve hot. For authenticity, pour from a height to aerate and create a frothy layer on top.