How to make
Mix the sugar and water in a pot and heat on a slow fire until the sugar dissolves completely. Remove from the stove and let it cool.
Squeeze out the juice of 9 lemons. Save 1 for decoration. Add the lemon juice to the sugar syrup. Stir well, cover with a lid and leave for 6 hours in the freezer.
Take it out, leave it at room temperature for 20 min. and crush it into pieces using a fork. Put it in a large bowl and crush finely.
Distribute it into glasses. Cut the last lemon into slices, without peeling them, and decorate with glass with slices of lemon. Serve immediately.