For elderberry jelly with chili and ginger, soak the elderflowers in water for 24 hours.
The next day, strain thoroughly, place in a saucepan with the remaining ingredients and boil for about 5 minutes to make jelly. Remove the lemon peel.
Rinse jars while hot and fill with elderberry jelly with chili and ginger. Invert the sealed jars and allow to cool.