Measure half of the water (approximately) into a medium sized pot.
Wash the pandan leave and knot it or cut it into short strips (about 2 to 3 cm length). Drop the leaf into the water pot.
Turn on the heat and let the water boil with the pandan leaf. The fragrance from the pandan leaf will be infused into the water as it boils.
Put on the lid. As soon as the water boils, ,turn the heat off. Add in the tea bag.
Let the tea steep in the hot water for approximately 1 to 2 minutes. Letting the tea bag steep in the hot water for more than 2 minutes will give you a much stronger tea taste. Since this is meant to be a light tea drink, 1 to 2 minutes of steeping is sufficient. Discard the tea bag.
Add sugar into the hot black tea and stir to dissolve.
Remove the pandan leaf and discard it. If you knotted the leaf, use a pair of tongs to remove it. If you had cut the leaf into small strips, simply strain the tea to remove the leaves.
Add the remaining water into the light black tea. Mix and place the drink in the refrigerator to chill before serving.