Wash the lemons thoroughly, zest them and then squeeze them for their juice!

Place the lemon zest the sugar and the juice in a bowl. Set it aside for 3 hours stirring from time to time.

Then strain well and add the "syrup" to the water (after three hours the lemon juice and the sugar will have turned into a kind of syrup).

Serve the lemonade chilled with slices of lemon, plenyt of ice and spearmint leaves!