Cut the peaches in half and remove the stones.
To make the syrup, put the water, sugar and lemon verbena into a pan and bring to a gentle boil for 5 minutes. Add the halved peaches and cook for around 12 minutes (depending on your peaches). Take off the heat and allow to cool a little, then take the skins off the peaches. Transfer the fruit to a container and leave for a couple of hours, until the syrup starts to take on the colour of the peaches.
Serve with clotted cream – you can spoon this into the peach cavities – and the syrup.