Bring 1 gallon of water to the boil and pour into a clean (sterilised) container.

Add 1½ lb of sugar, stir until dissolved.

When this has cooled down, add the juice and thinly peeled rind of 1 lemon, 2 tablespoons of cider vinegar and 12 elder flower heads.

Cover this mixture with several layers of muslin and leave it for at least 24 hours.

Filter the liquid through the muslin into strong glass bottles.

After two weeks this drink will be ready to serve.