1. Pick the fresh lilac flowers first
2. Pluck the lilac petals
3. Wash the clove petals
4. Put the clove petals into the pot and add the appropriate amount of water to start simmering
5. Simmer for 30 minutes and remove the petals
6. Put in the pot and continue simmering for 30 minutes,
7. After simmering for 30 minutes, add sugar
8. Add half a lemon juice to the broth
9. Do it well