To make this marmalade you first need to make the elderflower cordial, I have invented this recipe to use up the lemons that are so wonderfully flavoured with the elder flowers, it seems such a waste to bin them when they can be made into this delicious marmalade.
Bring to the boil (110c) and continue at a rolling boiling until setting point is reached. This can be checked by the cold plate test, put a teaspoon of marmalade on the plate and let it cool, if it wrinkles when you push your finger against it, it is at setting point.
Bottle in clean and sterile jars.
Label and date.