Step by step

1. Bring 500 ml water up to 90ºC in the electric kettle.

2. Pour the water into a jug and add the teabags. Let steep for 2 minutes.

3. Remove the teabags and chill the tea in the refrigerator.

4. Cut the lemongrass across and chop into small chunks. Put into a small saucepan.

5. Add 150 ml water, sugar and lemongrass, bring to a boil and let simmer for 15 minutes.

6. Strain the lemongrass syrup and add to the cold tea.

7. Serve the iced tea over ice.