- Heat 1 l of water with 1 kg of Zùsto without boiling.
- Add about 15 blossoms (stripped of stems in a pot together with 1 sliced lemon. Variations are possible (eg rose petals, ginger, star anise).
- Close the weck jar and let the syrup rest for 48 hours.
- Strain the mixture 2 to 3 times through a muslin cloth until you obtain an amber-colored liquid.
- Pour them into sterilized bottles.
- Close bottles tightly and turn them upside down so that they can evacuate. Important to keep well.