1-2packets citric acid (5 g each, about 1–2 teaspoons)
500g-1000gwhite sugar (about 2½–5 cups, depending on your desired sweetness)*
Instructions
Gently clean the lilac blossoms: remove insects or debris, but don’t wash them. Pluck the individual flowers and discard the stems.
In a large container, combine the flowers, water, citric acid, and lemon slices.
Cover and let sit in a dark place for about 24 hours to infuse.
Strain the liquid through a fine sieve, pressing gently on the flowers and lemons to extract every last drop.
Pour the liquid into a pot, add the sugar, and bring to a boil. Let it boil for about 10 minutes.
Sterilize the bottles, lids, funnel, and (if possible) the strainer in water for 10 minutes, or heat in the oven at 120°C (250°F).
While hot, pour the syrup into sterilized bottles and seal immediately. A funnel makes this part easier.
Enjoy immediately as a fizzy drink with sparkling water, or use as a sweetener for your desserts.Shelf Life:Stored in a cool, dark place and sealed tightly, the syrup will last for several weeks. With 500 g (2½ cups) sugar: best to refrigerate and use within a few weeks. With 1 kg (5 cups) sugar: the syrup can last up to 1 year.
Notes
*You can also use raw cane sugar. The syrup will turn out a bit darker, but it works just as well.