Here you go mate. Mind you, the flowers aren't out yet, they'll be out in a few weeks probably but you don't pick them until they turn from white to yellowish. They are usually yellowish in mid May.
Elderflower wine - makes 1 demijohn (about 5-6 bottles)
In a giant saucepan - 2 lbs sugar, 6 pints water, juice of 2 lemons, bring to the boil and dissolve sugar.
Add 20-30 elderflowerheads and 1 tbsp wwvinegar. Simmer 20m.
Leave to cool until room temp.
Pour into demi john.
Add 1/2 tsp yeast and add the airlock.
Leave to ferment until bubbles stop (anytime from 1-6w).
Bottle using