Method
Boil 8 litres water in a large pan and dissolve 1.25kg sugar into it. Cool then add 8 large elderflower heads, juice of 2 lemons and 2 sliced lemons, and 4 tbsp white wine vinegar. Cover with a cloth and leave for one day. Strain through a fine sieve or muslin squeezing the mixture. Store in pressure proof bottles. Ready in two weeks, drink within one month.