Heat one quart of water to boiling in large saucepan. Add loose tea to boiling water and remove from heat; allow to steep with lid on for 4 minutes. Immediately strain tea into a pitcher filled with the cool water.
While tea is brewing, for the lemonade base combine water, sugar and lemon zest. Bring to a boil and simmer for 5 minutes. Cool, and then add the lemon juice. Strain the syrup and store in the refrigerator in a covered jar.
To Serve: Fill a 16 ounce glass 3/4 full with ice. Put in 2 -3 tablespoons (or to taste) lemonade base and then slowly fill the glass with tea. Garnish with mint sprig and serve.
For alcoholic beverage, add Bourbon.
Should you have leftover lemonade base, it may be used to make lemonade by using 1 part lemonade base and 4 parts water.