Add the peach slices, sugar, and water into a pot. Bring to a boil. Stir to check sugar is fully dissolved then take off the heat.
Add in the leave so the Thai basil immediately so that it can infuse through the peach syrup. Let the syrup cool down with leaves still in.
Once the syrup is cool, strain out the peach slices and Thai basil leaves. Then add in the juice of two lemons.
This cordial/syrup stores well in the fridge for about a week. Drink diluted with sparkling water, kombucha or even chilled green tea.
