The first thing you need to do is the brew the tea. Take about 4 cups of water and brew the tea. Basically, boil the water and then put in the tea bags. Turn off the heat and cover the pan.
If you are using normal tea and not tea bags, then use about 4 tsp of tea and let it steep.
Let it steep for a longer period of time than usual. I prefer about 7- 10 minutes. Then discard the tea bags and keep the tea aside.
Once you are done with the brewing, take another pan and put in 2 cups of water, along with sugar and chopped ginger. Also add the lemon grass. Only the white stalk of the lemon grass should be used. Cut then into small pieces and smash a little bit with the knife to enhance the flavor.
Let this boil for about 2 -3 minutes and then let it steep in medium to low heat for about half hour. Cover the pan while doing it or else the liquid will reduce.
Once you get the full flavor and aroma of the lemon grass and ginger, add the tea to the mix. Give it one good boil and then turn off the heat.
Let the tea cool down and the flavor of the lemon grass and ginger infuse properly.
Once completely cool, strain the liquid and discard the lemon grass and ginger bits. You can use the leftover ginger in any of your cooking.
Make sure to taste and adjust the quantity of sugar as per your taste.
Then pour in a jar or a bottle and keep it in the refrigerator to chill. I feel, overnight it gives a full bodied flavor.
Serve chilled in a tall glass with lots of ice cubes. Garnish with lemon wedges for an added zing.