Slice the lemons.

Add lemon slices and lavender to the water and bring to boil. Boil at low temperature for about 5 minutes.

Infuse overnight or about 24 hours. This means the lemons and lavender stays in the pot ;) Does not have to be in the fridge

The next day pour through a sieve. Add the sugar and bring to boil again without lemon & lavender. Again, for a few minutes at low temperature.

Fill into clean bottles.