Pick the flowers on a hot sunny day as the yeast is mainly in the pollen
5 quarts water
3 1/2 cups sugar
juice and thinly peeled rind of one lemon
2 TBS cider or wine vinegar
12 Elderflower heads
1) Bring the water to a boil. Pour into a sterilized container; add the sugar , stirring until dissolved.
2) When cool, add the juice and rind of the lemon, vinegar and elderflowers. Cover with several layers of cheesecloth and leave for 24 hours.
3)Filter through cheesecloth into strong bottles. This drink is ready after 2 weeks. Serve chilled.