How to Make Lilac Syrup: 1) wash lilac blooms. With kitchen scissors, snip the individual petals Measure out 4 cups of petals and add to a large mason jar.2) In a medium-sized saucepan, bring the water and sugar to a boil.
3) Pour the hot syrup over the blossoms in the jar. Cover and let sit on the counter for at least 6 hours. 4) After the mixture sits, strain the syrup through a sieve to remove all the petals. Now your syrup is ready to use!