handful (according to taste) fresh mint
9 cups water, divided
1 cup sugar
fresh lemon slices
Remove tags from tea bags. Place tea bags and mint into a heat-proof pitcher and pour 2 cups water over them.
Bring 4 cups water to a rolling boil; pour into pitcher and cover with lid or a plate. Steep 10 minutes.
Remove mint and tea bags, add the sugar and stir until dissolved.
Add lemon slices along with 3 cups cold water.
Serve over ice. Garnish with a sprig of fresh mint, if desired.