We buy caffeine-free green tea, but you could use your favorite brand for this. Also, you can replace the green tea with other teas, one of my favorites is camomile tea.
6 green tea bags
2 cups water or more to taste
1/4 cup sugar, optional
8 mint leaves
1 orange, thinly sliced
In a large saucepan, bring 2 cups of water and 1/4 cup of sugar to a boil, turn off heat then stir until sugar dissolves. Add tea bags and 8 mint leaves. Steep for about 8 minutes. Taste and then adjust with more sugar if it needs it.
Discard tea bags and mint. Cool. Fill 4 glasses to the brim with ice. Add the tea and garnish with mint leaves and an orange slice.