Collect as many chemical free dandelions as possible. Put just the washed heads into a pot and barely cover with water. Boil for some time, about 20-30 minutes. Remove those heads with a sieve and add another pot full of flower heads to the water and boil these for 20-30 minutes. The more dandelions you boil in the water, the stronger the flavour will be.

When you have boiled all the flowers you plan to boil, remove flowers with a sieve and strain liquid. Add sugar, 1 part sugar to 1 part water. Let boil until thick and syrupy.